Burns - Emergency Assessment and Management
Burn Depth Classification: Superficial (epidermis, red, painful), Superficial Partial (blisters, moist, blanches, ver... ACEM Fellowship Written, ACEM Fellow
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Urgent signals
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- Circumferential burns with compromised circulation
- Inhalation injury with stridor, hoarseness, or facial burns
- Electrical burns with arrhythmias or deep tissue damage
- TBSA greater than 10% in adults or greater than 5% in children
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- ACEM Fellowship Written
- ACEM Fellowship OSCE
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- Inhalation Injury
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Quick Answer
One-liner: Burns are thermal injuries requiring immediate cooling, accurate TBSA assessment (Lund-Browder chart), fluid resuscitation (Parkland formula), and early recognition of life-threatening complications (inhalation injury, circumferential burns, escharotomy).
30-Second Summary: Burn severity is determined by depth (superficial to full-thickness) and Total Body Surface Area (TBSA). Immediate care involves stopping the burning process, cooling with running water (12-18°C for 20 minutes), pain management, and fluid resuscitation for greater than 10% TBSA burns. Life-threatening complications include inhalation injury (early intubation), circumferential burns requiring escharotomy, and electrical burns with deep tissue damage. Transfer to a burn unit is mandatory for greater than 10% TBSA, burns to special areas (face, hands, feet, genitals), electrical/chemical burns, inhalation injury, or children with significant burns. Indigenous Australians have 3-4× higher burn incidence due to housing conditions, reliance on open fires, and geographic isolation, requiring cultural safety and early RFDS retrieval.
ACEM Exam Focus
Primary Exam Relevance
- Anatomy: Dermis layers (epidermis, papillary dermis, reticular dermis), skin appendages, compartment anatomy of limbs
- Physiology: Capillary permeability changes, burn shock pathophysiology, fluid shifts, metabolic response to burns (hypermetabolism, catabolism)
- Pharmacology: Opioids for analgesia, ketamine for procedural sedation, tetanus prophylaxis, antibiotics indications
Fellowship Exam Relevance
- Written: High-yield topics include Parkland formula application, escharotomy indications, inhalation injury diagnosis, burn depth classification, Lund-Browder vs Rule of Nines, transfer criteria
- OSCE: Common scenarios include initial burn assessment, escharotomy procedure, inhalation injury management, communication with patient/family about burn severity and transfer
- Key domains tested: Medical Expert (clinical knowledge and decision-making), Collaborator (interprofessional teamwork with burns team), Professional (ethical considerations in severe burns, cultural competence with Indigenous patients)
Key Points
The 7 things you MUST know:
- Burn Depth Classification: Superficial (epidermis, red, painful), Superficial Partial (blisters, moist, blanches, very painful), Deep Partial (dry, waxy, sluggish blanching, pressure sensation only), Full Thickness (leathery, charred, no blanching, anesthetic) - do NOT include superficial burns in TBSA calculation
- TBSA Assessment: Use Lund-Browder chart (most accurate, especially in children), Rule of Nines (quick estimate for adults), Palmer surface area = 0.5% for hand burns - exclude erythema-only superficial burns
- Parkland Formula: 4 mL/kg/%TBSA (adults), 3 mL/kg/%TBSA (children) - give 50% in first 8 hours from TIME OF INJURY (not hospital arrival), 50% in next 16 hours, titrate to urine output 0.5 mL/kg/hr (adults) or 1 mL/kg/hr (children below 30 kg)
- Escharotomy Indications: Circumferential burns with loss of distal pulses, absent Doppler signals, capillary refill greater than 3 seconds, paresthesia, motor weakness, or chest wall restriction causing elevated peak airway pressures - do NOT wait for ischemia to develop
- Inhalation Injury: Suspect with facial burns, soot in sputum/oropharynx, singed nasal hairs, hoarseness, stridor, carbonaceous sputum - intubate early before airway edema makes intubation impossible (edema peaks at 12-24 hours)
- Cooling: Use running tap water at 12-18°C for 20 minutes if within 3 hours of injury - AVOID ice (causes vasoconstriction and deepens burn), avoid ice water directly on burn, stop cooling once pain controlled or patient becomes hypothermic
- Transfer Criteria: TBSA greater than 10%, burns to special areas (face, hands, feet, genitals, perineum, major joints), full-thickness burns greater than 5%, electrical burns, chemical burns, inhalation injury, children with greater than 5% TBSA, patients with significant comorbidities
Epidemiology
| Metric | Value | Source |
|---|---|---|
| Incidence | 50-100 per 100,000/year (general population) | [1] |
| Incidence (Indigenous) | 180-250 per 100,000/year (3-4× higher) | [2] |
| Incidence (remote/rural) | 150-200 per 100,000/year | [3] |
| Mortality (overall) | 5-15% | [4] |
| Mortality (greater than 80% TBSA) | greater than 50% | [5] |
| Peak age | 0-4 years (scalds), 15-40 years (flame) | [6] |
| Gender ratio | M:F 1.5:1 (flame), F:M 1.2:1 (scalds) | [7] |
Australian/NZ Specific
- Indigenous Disparities: Aboriginal and Torres Strait Islander populations experience burns at 3-4× the rate of non-Indigenous Australians, with higher severity (larger TBSA), delayed presentation, and higher rates of scald injuries in children (hot water, open fires, heating) [2]
- Māori Health: Māori have 2-3× higher burn incidence than non-Māori in New Zealand, with higher rates of flame burns and longer hospital stays [8]
- Remote/Rural: Remote areas have 2-3× higher burn hospitalization rates due to overcrowded housing, reliance on open fires/wood heaters, limited access to immediate first aid, and delayed medical care [3]
- RFDS Retrievals: 70-80% of RFDS aeromedical burn retrievals involve Indigenous patients, with average transfer times of 4-8 hours from injury to specialist burn center [9]
- BRANZ Data: Burns Registry of Australia and New Zealand shows 60% of pediatric burns occur in children below 4 years, with scalds being the most common mechanism (45%) [10]
Pathophysiology
Mechanism
Burn injury results from thermal, chemical, electrical, or radiation energy transfer to tissue. The severity depends on:
- Temperature/duration: Higher temperatures and longer contact increase depth
- Mechanism: Flame burns (typically deeper), scalds (depth varies with temperature and duration), electrical burns (deep tissue destruction despite minimal skin injury), chemical burns (continues until neutralized)
- Age and comorbidities: Children and elderly have thinner skin, deeper burns for same exposure
Burn Depth Pathophysiology
| Depth | Tissue Involved | Pathophysiology | Clinical Appearance |
|---|---|---|---|
| Superficial (1st°) | Epidermis only | Epidermal necrosis, no scarring, regeneration from basal layer | Red, dry, no blisters, painful, blanches |
| Superficial Partial (2nd°) | Epidermis + papillary dermis | Partial-thickness loss, blister formation, dermal inflammation, rapid healing | Blisters, moist, red, blanches well, very painful |
| Deep Partial (2nd°) | Epidermis + reticular dermis | Deeper dermal injury, damage to sweat glands/hair follicles, slower healing, scarring likely | Dry, waxy white/mottled, sluggish blanching, pressure sensation only |
| Full Thickness (3rd°) | Epidermis + entire dermis | Complete dermal destruction, nerve endings destroyed, no spontaneous healing, requires grafting | Leathery, charred, white/gray/black, no blanching, anesthetic |
| Fourth Degree | Dermis + subcutaneous tissue, muscle, bone | Deep tissue destruction, high risk of amputation | Charred, exposed muscle/tendon/bone, anesthetic |
Burn Shock Pathophysiology
Injury → Massive inflammatory mediator release (histamine, bradykinin, prostaglandins)
→ Increased capillary permeability (peaks 8-12 hours)
→ Massive fluid shift from intravascular to interstitial space
→ Hypovolemia, decreased cardiac output, organ hypoperfusion
→ Compensatory tachycardia, vasoconstriction, oliguria
→ If untreated → Multi-organ failure, death
Phases of Burn Shock:
- 0-12 hours: Rapid edema formation, hypovolemia begins
- 12-24 hours: Maximal capillary leak, peak edema
- 24-48 hours: Capillary leak begins to resolve, third-spacing continues
- 48-72 hours: Reabsorption of interstitial fluid, diuresis begins
Why It Matters Clinically
- Fluid resuscitation timing: Must be initiated early (within 1 hour of injury) to prevent hypovolemic shock - Parkland formula calculates from TIME OF INJURY, not hospital arrival
- Escharotomy urgency: Burn edema peaks at 8-12 hours - circumferential burns can cause compartment syndrome rapidly, requiring escharotomy before irreversible ischemia
- Inhalation injury progression: Airway edema peaks at 12-24 hours - intubation becomes increasingly difficult as edema worsens, early airway control is critical
- Infection risk: Burn wound becomes colonized within 24-48 hours, eschar provides no immune defense - early wound care and monitoring for infection is essential
Clinical Approach
Recognition
Burns should be recognized immediately in any patient presenting with:
- History of thermal/chemical/electrical/radiation exposure
- Visible skin injury (erythema, blisters, eschar)
- Pain out of proportion to visible injury (electrical, deep burns)
- Signs of smoke inhalation (facial burns, soot, hoarseness)
- Circumferential burns (limbs, chest, neck)
- Altered mental status (carbon monoxide poisoning)
Immediate Red Flags on Arrival:
- Stridor, hoarseness, or respiratory distress → imminent airway obstruction
- Circumferential chest burns with restricted breathing → need for escharotomy
- Circumferential limb burns with absent pulses → compartment syndrome
- TBSA greater than 20% → need for aggressive fluid resuscitation
- Electrical burns → cardiac arrhythmias, deep tissue injury
Initial Assessment
Primary Survey (if applicable)
- A: Airway - Assess for inhalation injury (facial burns, soot, hoarseness, stridor). Have a LOW threshold for intubation - secure airway BEFORE edema makes intubation impossible. Use rapid sequence intubation with cervical spine protection if trauma mechanism.
- B: Breathing - Assess for respiratory distress, chest wall movement. Circumferential chest burns may restrict expansion. Consider early escharotomy if peak airway pressures greater than 30-40 cmH2O. Treat carbon monoxide poisoning (100% oxygen until COHb below 5%). Suspect cyanide toxicity in enclosed space fires with lactic acidosis (hydroxocobalamin 5g IV over 15 minutes).
- C: Circulation - Establish 2 large-bore IVs (14-16G). Assess for hypovolemia (tachycardia, hypotension, delayed capillary refill greater than 2s). Check distal pulses in circumferential limb burns (palpation + Doppler). Initiate fluid resuscitation for greater than 10% TBSA burns. Continuous cardiac monitoring for electrical burns.
- D: Disability - Assess GCS, pupils. Altered mental status may indicate hypoxia, CO poisoning, head trauma, or shock. Baseline neurologic assessment for compartment syndrome.
- E: Exposure/Environment - Completely remove burned clothing and jewelry (especially rings, watches). Stop burning process (cooling, remove chemical agents, disconnect electrical source). Cover with clean, dry sheets. Maintain normothermia (warm the room, use forced-air warming). Assess full extent of burns (back, axilla, groin, perineum).
History
Key Questions
| Question | Significance |
|---|---|
| What caused the burn? | Mechanism guides treatment (chemical = neutralization, electrical = cardiac monitoring, flame = inhalation injury risk) |
| What time did it happen? | Critical for fluid resuscitation calculation (Parkland formula from TIME OF INJURY), cooling window (below 3 hours for effective cooling) |
| What was the duration of exposure? | Longer exposure = deeper burns, especially scalds and chemical burns |
| Was first aid provided? | Effective cooling (running water for 20 minutes) reduces burn depth by 50% - know if cooling was done, temperature used, duration |
| Any loss of consciousness? | Suggests head trauma, CO poisoning, or smoke inhalation |
| Any other injuries? | Trauma mechanism may require ATLS approach (falls, explosions, assault) |
| Medical history? | Comorbidities affect outcomes (diabetes, cardiac disease, peripheral vascular disease) |
| Medications? | Anticoagulants increase bleeding risk for escharotomy |
| Allergies? | Important for antibiotics and analgesia |
| Tetanus status? | Tetanus prophylaxis required for all burns |
| Living situation? | Home environment, social support, access to follow-up care |
| Cultural considerations? | Need for Aboriginal Health Workers, Māori Health Workers, interpreter, family involvement |
Red Flag Symptoms
- Respiratory: Stridor, hoarseness, dyspnea, wheezing, facial burns, soot in sputum
- Circulatory: Absent distal pulses, delayed capillary refill greater than 3 seconds, cyanosis, pallor, paresthesia, motor weakness
- Neurologic: Altered mental status, seizures (electrical burns, CO poisoning)
- Burn-specific: Circumferential burns (limbs, chest, neck), electrical burns, chemical burns, TBSA greater than 10%
- Systemic: Tachycardia greater than 120, hypotension (late sign - indicates severe hypovolemia), oliguria below 0.5 mL/kg/hr
Examination
General Inspection
- Level of distress: Pain, anxiety, respiratory distress
- Position: Patient may guard burned areas
- Skin signs: Erythema, blisters, eschar, charring, soot, singed hair
- Facial involvement: Burns around eyes, nose, mouth, ears (indicates high risk of inhalation injury)
- Pattern of injury: Helps determine mechanism (splash vs immersion, contact vs flame, electrical entry/exit points)
Specific Findings
| System | Finding | Significance |
|---|---|---|
| Airway | Soot in oropharynx, singed nasal hairs, facial burns, hoarseness, stridor | Inhalation injury, need for early intubation |
| Breathing | Tachypnea, accessory muscle use, decreased breath sounds, wheeze | Inhalation injury, circumferential chest burns, CO poisoning |
| Circulation | Tachycardia, hypotension (late), prolonged capillary refill, cool extremities | Burn shock, hypovolemia |
| Limbs | Circumferential burns, absent pulses, tense swollen compartment, pallor, cyanosis, paresthesia, motor weakness | Compartment syndrome requiring escharotomy |
| Chest | Circumferential burns, decreased chest expansion, high peak pressures | Restrictive chest wall, need for escharotomy |
| Skin | Erythema (superficial), blisters (superficial partial), dry waxy (deep partial), leathery/charred (full thickness) | Burn depth assessment |
| Eyes | Corneal burns, periocular burns | Risk of vision loss, ophthalmology consult |
| Ears/Nose | Singed hairs, soot, burns | Inhalation injury marker |
| Genitals/Perineum | Burns in sensitive areas | Higher risk of infection, catheter placement |
Investigations
Immediate (Resus Bay)
| Test | Purpose | Key Finding |
|---|---|---|
| ECG | Assess cardiac rhythm (electrical burns), ischemia, arrhythmias | Sinus tachycardia, arrhythmias, QT prolongation |
| CXR | Baseline chest assessment, aspiration pneumonitis, pulmonary edema | Normal initially, may show infiltrates later (inhalation injury) |
| COHb level | Diagnose carbon monoxide poisoning | Elevated (greater than 5% nonsmokers, greater than 10% smokers) in inhalation injury |
| ABG | Assess oxygenation, ventilation, acid-base, lactate | Metabolic acidosis (cyanide), hypoxemia (inhalation), hypercarbia |
| Fingerprick glucose | Exclude hypoglycemia in altered mental status | Low glucose in critical illness |
| Urine dipstick | Screen for myoglobinuria (electrical burns, deep burns) | Positive for blood (no RBCs on microscopy) = myoglobin |
Standard ED Workup
| Test | Indication | Interpretation |
|---|---|---|
| FBC | All significant burns (greater than 10% TBSA) | Anemia (hemolysis, burns), leukocytosis (stress response), thrombocytopenia (consumption) |
| Urea/Creatinine | Baseline renal function, fluid resuscitation monitoring | Acute kidney injury (rhabdomyolysis, shock) |
| Electrolytes | Baseline, monitor for shifts (cellular damage releases K+) | Hyperkalemia (rhabdomyolysis, tissue necrosis), hyponatremia (fluid shifts) |
| Lactate | Assess shock severity, end-organ perfusion | Elevated (greater than 2 mmol/L) indicates inadequate resuscitation |
| CK | Suspected rhabdomyolysis (electrical burns, deep burns, crush) | Markedly elevated (greater than 1000 U/L) with myoglobinuria |
| Coagulation profile | Major burns, escharotomy planning | Coagulopathy increases bleeding risk |
| Blood type and crossmatch | Major burns (greater than 20% TBSA), anticipated escharotomy | Available for transfusion if needed |
| Toxicology screen | Suspected suicide, overdose mechanism | Identifies co-ingestions |
Advanced/Specialist
| Test | Indication | Availability |
|---|---|---|
| Bronchoscopy | Suspected inhalation injury (soot, facial burns, enclosed space) | Tertiary burn center, ICU |
| CT chest | Suspected aspiration pneumonitis, pulmonary embolism | Tertiary center |
| CT brain | Altered mental status, head trauma, electrical burns with LOC | Major hospital |
| Doppler ultrasound | Assess distal perfusion in circumferential burns | ED, vascular ultrasound |
| Compartment pressure measurement | Diagnose compartment syndrome, guide escharotomy | ED, OR |
| Swab cultures | Monitor burn wound infection (after 48 hours) | Burn center |
Point-of-Care Ultrasound
- Vascular: Assess distal flow in circumferential limb burns (Doppler signals at palmar arch, dorsalis pedis)
- Abdominal: FAST exam if trauma mechanism (falls, explosions, assault)
- Cardiac: Assess contractility, volume status (IVC collapsibility, EF estimation)
- Airway: Visualize vocal cords before difficult intubation (airway edema)
Management
Immediate Management (First 10 minutes)
1. SCENE SAFETY: Remove from source of injury, disconnect electrical power, remove contaminated clothing (chemical burns)
2. ABCDE PRIMARY SURVEY: Address life-threatening issues first (airway, breathing, circulation)
3. STOP BURNING PROCESS: Remove all clothing and jewelry, cool with running tap water (12-18°C) for 20 minutes if within 3 hours of injury
4. ANALGESIA: IV opioids (fentanyl 25-50 mcg increments, morphine 2-5 mg increments) titrated to pain - consider ketamine for dressing changes
5. FLUID RESUSCITATION: 2 large-bore IVs, initiate Parkland formula for greater than 10% TBSA burns (4 mL/kg/%TBSA)
6. TETANUS PROPHYLAXIS: Tetanus toxoid if not updated within 5 years, tetanus immunoglobulin if never vaccinated or greater than 10 years since last dose for contaminated wounds
7. ASSESS COMPLICATIONS: Look for circumferential burns (escharotomy indications), inhalation injury (intubation), electrical burns (cardiac monitoring)
8. WOUND CARE: Cover with clean, non-adherent dressings (paraffin gauze, cling film, sterile sheets)
9. MAINTAIN NORMOTHERMIA: Warm room, forced-air warming blanket, warm IV fluids
10. EARLY BURN UNIT CONSULTATION: Contact tertiary burn center for transfer criteria assessment
Resuscitation
Airway
Indications for Early Intubation:
- Stridor or hoarseness
- Respiratory distress (RR greater than 25, SpO2 below 94% on room air)
- Deep facial/neck burns
- Soot in oropharynx with respiratory distress
- Altered mental status (GCS below 8)
- Circumferential neck burns
- Anticipated difficult airway (edema progression)
Intubation Technique:
- Rapid sequence intubation (RSI) preferred
- Prepare for difficult airway: have multiple airway adjuncts ready (video laryngoscope, bougie, supraglottic airway)
- Consider awake fiberoptic intubation if severe airway edema anticipated
- Use cuffed endotracheal tube (size 7.0-8.0 for adults, age/4 + 3.5 for children)
- Secure tube carefully (avoid pressure on burned skin)
Post-intubation Management:
- Ventilate with tidal volume 6-8 mL/kg, PEEP 5-10 cmH2O
- Maintain SpO2 greater than 94%, PaCO2 35-45 mmHg
- Monitor peak airway pressures (greater than 30-40 cmH2O suggests chest wall escharotomy needed)
- Consider bronchoscopy for inhalation injury grading
- Continue 100% oxygen until COHb below 5%
Breathing
Carbon Monoxide Management:
- 100% oxygen via non-rebreather mask (non-intubated) or ventilator (intubated)
- Half-life of COHb: 4-5 hours on room air, 60-90 minutes on 100% O2, 15-20 minutes with hyperbaric O2
- Hyperbaric O2 indications: COHb greater than 25%, neurologic symptoms, cardiac ischemia, pregnancy
- Monitor COHb levels until below 5%
Cyanide Management:
- Suspect in enclosed space fires with lactic acidosis (greater than 10 mmol/L) and normal PaO2
- Hydroxocobalamin (Cyanokit) 5g IV over 15 minutes (single dose)
- Alternative: Sodium thiosulfate (25 g IV over 30 minutes) + sodium nitrite (300 mg IV over 5 minutes) - contraindicated in smoke inhalation (increases methemoglobin)
- Monitor for hypertension, red discoloration of skin/urine (hydroxocobalamin side effects)
Circulation
Fluid Resuscitation (Parkland Formula):
| Patient Population | Formula | Administration |
|---|---|---|
| Adults | 4 mL × kg × %TBSA | 50% in first 8h (from injury), 50% in next 16h |
| Children | 3 mL × kg × %TBSA | 50% in first 8h (from injury), 50% in next 16h |
| Electrical burns | 4 mL × kg × %TBSA (minimum) | Additional fluid for myoglobinuria (maintain urine output 1-2 mL/kg/hr) |
Target Urine Output:
- Adults: 0.5 mL/kg/hr
- Children below 30 kg: 1 mL/kg/hr
- Electrical burns with myoglobinuria: 1-2 mL/kg/hr
Crystalloid Choice:
- Lactated Ringer's (preferred): Isotonic, balanced electrolytes, lactate metabolized to bicarbonate (helps correct acidosis)
- Normal saline (alternative): Large volumes cause hyperchloremic acidosis
- Colloids: Generally avoided in first 24 hours due to capillary leak (risk of pulmonary edema)
Adjunctive Therapies:
- Vitamin C (ascorbic acid): 66 mg/kg/hr (adults) or 50 mg/kg/hr (children) for 24 hours - reduces capillary leak and total fluid requirements by 30% (controversial, not universal practice)
- Vasopressors: Norepinephrine 0.05-0.5 mcg/kg/min for persistent hypotension despite adequate fluid resuscitation
Monitoring:
- Urine output hourly (Foley catheter for greater than 20% TBSA burns)
- Vital signs q15-30 minutes initially, then hourly
- Central venous pressure (optional) for greater than 30% TBSA burns
- Serial lactate to assess resuscitation adequacy
- Watch for fluid creep (over-resuscitation) - abdominal compartment syndrome, pulmonary edema
Medications
| Drug | Dose | Route | Timing | Notes |
|---|---|---|---|---|
| Fentanyl | 25-50 mcg increments | IV | Every 5-10 minutes | Titrate to pain, short-acting, hemodynamically stable |
| Morphine | 2-5 mg increments | IV | Every 5-10 minutes | Titrate to pain, watch for hypotension and respiratory depression |
| Ketamine | 1-2 mg/kg | IV/IM | For dressing changes | Dissociative analgesia, maintains airway reflexes, monitor hallucinations |
| Tetanus toxoid | 0.5 mL | IM | If not updated in 5 years | Give with tetanus immunoglobulin if never vaccinated or greater than 10 years for contaminated wounds |
| Tetanus immunoglobulin | 250 U (adults), 500 U (children greater than 10 years) | IM | For never vaccinated or greater than 10 years for contaminated wounds | Separate injection site from toxoid |
| Hydroxocobalamin | 5 g | IV | For cyanide poisoning | Administer over 15 minutes, may cause red discoloration of skin/urine |
| Cefazolin | 2 g q8h | IV | For infected burns (after 48 hours) | First-line for Staph aureus/Strep pyogenes, adjust based on cultures |
| Silver sulfadiazine | Apply q12h | Topical | For superficial partial and deep partial thickness burns | Avoid in sulfa allergy, sulfonamide antibiotics contraindicated |
| Bacitracin | Apply q12h | Topical | Alternative for face and superficial burns | Less cytotoxic than silver sulfadiazine |
Paediatric Dosing
| Drug | Dose | Max | Notes |
|---|---|---|---|
| Fentanyl | 0.5-1 mcg/kg | No max | Titrate to effect |
| Morphine | 0.1-0.2 mg/kg | 10 mg | Titrate to effect |
| Ketamine | 1-2 mg/kg | 100 mg | For dressing changes |
| Cefazolin | 25-50 mg/kg q8h | 2 g | Dose-based dosing |
| Tetanus toxoid | 0.5 mL | 0.5 mL | Same as adult |
Ongoing Management
After initial resuscitation (first 24-48 hours):
- Wound care: Daily dressing changes with non-adherent dressings (paraffin gauze, silicone dressings, silver-impregnated dressings for infected burns)
- Pain management: Continue opioids, consider PCA for large burns, add adjuncts (acetaminophen, NSAIDs if no contraindications)
- Nutrition: Initiate early enteral nutrition within 24 hours for greater than 20% TBSA burns (high-calorie, high-protein feed to counter catabolism)
- DVT prophylaxis: Enoxaparin 40 mg SC daily or heparin 5000 U SC q8h for greater than 20% TBSA burns or immobile patients
- Stress ulcer prophylaxis: PPI (omeprazole 40 mg daily) or H2 blocker (ranitidine 50 mg q8h) for greater than 20% TBSA burns or ventilated patients
- Infection monitoring: Daily wound inspection, swab cultures if signs of infection (erythema, purulence, fever, leukocytosis), blood cultures if systemic signs
- Rehabilitation: Early physiotherapy to prevent contractures, positioning to prevent pressure sores, psychosocial support (PTSD screening, anxiety/depression management)
Definitive Care
Transfer to Burn Unit:
- Call early (within 1-2 hours of presentation) for consultation and transfer arrangement
- RFDS retrieval for remote/rural patients: 1800 625 800 (24/7 retrieval hotline)
- Stabilize patient before transfer (airway secured, IV access, fluids running, dressings applied)
- Accompanying medical team may include retrieval physician and flight nurse
- Prepare summary with mechanism, time of injury, TBSA calculation, fluid resuscitation details, complications
Burn Unit Management:
- Early excision and grafting: Tangential excision of deep partial and full-thickness burns within 3-7 days, split-thickness skin grafting from donor sites
- Biologic dressings: Amniotic membrane, allograft (cadaver skin), xenograft (pigskin) for temporary coverage
- Bioengineered skin substitutes: Integra (dermal replacement), Matriderm for deep burns
- Negative pressure wound therapy: VAC dressings for complex wounds, promotes granulation
- Scar management: Pressure garments, silicone gel sheets, laser therapy, massage once wound healed
- Reconstructive surgery: Release of contractures, Z-plasty, tissue expanders, free flaps for complex defects
Disposition
Admission Criteria
- TBSA greater than 10% (adults) or greater than 5% (children)
- Burns to special areas (face, hands, feet, genitals, perineum, major joints)
- Full-thickness burns greater than 5% (any age)
- Electrical burns (including lightning)
- Chemical burns (especially acid, alkali)
- Inhalation injury (suspected or confirmed)
- Circumferential burns requiring escharotomy
- Pediatric burns (age below 12 years) with significant injuries
- Patients with significant comorbidities (diabetes, cardiac disease, immunosuppression)
- Social concerns (inadequate home care, suspicion of non-accidental injury)
ICU/HDU Criteria
- TBSA greater than 20% (requires aggressive fluid resuscitation and monitoring)
- Inhalation injury requiring mechanical ventilation
- Hemodynamic instability requiring vasopressor support
- Electrical burns with arrhythmias or cardiac monitoring
- Major escharotomy procedures
- Multi-organ involvement (trauma + burns)
- Patients with severe comorbidities
Discharge Criteria
- Minor burns (below 5% TBSA) that are superficial partial thickness or less
- Patient able to manage dressings at home or with community nursing support
- Adequate pain control with oral analgesics
- No signs of infection
- Adequate social support and follow-up arranged
- Red flags for return: Fever greater than 38.5°C, increasing pain, purulent discharge, erythema spreading, difficulty breathing, altered mental status
Follow-up
- Burn clinic review: 2-3 days for superficial partial thickness burns, 1 week for minor burns
- GP letter: Include mechanism, TBSA, depth, fluid resuscitation details, tetanus status, discharge medications, follow-up plan, red flags for return
- Community nursing: For complex dressings, especially in remote areas (RFDS community health clinics)
- Physiotherapy: Early referral for hand burns, joint burns, or burns requiring splinting
- Psychology: Screen for PTSD (especially in major burns), refer to burn psychologist or mental health services
- Occupational therapy: Assess for functional limitations, home modifications, return to work/school planning
- Social work: Assist with accommodation, financial support, rehabilitation services
Special Populations
Paediatric Considerations
- Higher surface area to weight ratio: Children have larger TBSA for same body area - use Lund-Browder chart (accounts for age-related changes in body proportions)
- Higher fluid requirements: 3 mL/kg/%TBSA vs 4 mL/kg/%TBSA for adults, target urine output 1 mL/kg/hr (vs 0.5 mL/kg/hr for adults)
- Higher risk of hypothermia: Use warmed IV fluids, warm room, forced-air warming blankets, limit exposure
- Pain management: Avoid meperidine (risk of seizures), prefer fentanyl or morphine with careful dosing
- Child abuse consideration: Pattern of injury inconsistent with history, delay in presentation, multiple burns in different stages of healing, lack of supervision
- Long-term monitoring: Pediatric burns have significant impact on growth and development, require long-term follow-up for scarring, contractures, psychological effects
Pregnancy
- Fetal monitoring: Continuous fetal monitoring for greater than 15% TBSA burns, especially in third trimester
- Fluid resuscitation: Higher requirements due to increased blood volume, target urine output 0.5-1 mL/kg/hr
- Analgesia: Avoid NSAIDs (risk of premature ductus arteriosus closure), prefer acetaminophen and opioids
- Radiation exposure: Minimize imaging, consider MRI instead of CT when possible
- Transfer to burn unit: Early transfer recommended (preferably burn unit with obstetric capability)
Elderly
- Thinner skin: Deeper burns for same thermal exposure, higher risk of full-thickness burns
- Comorbidities: Cardiac disease, diabetes, peripheral vascular disease increase mortality risk
- Reduced physiologic reserve: Less tolerance for aggressive fluid resuscitation (risk of pulmonary edema, CHF)
- Altered drug metabolism: Lower opioid doses, adjust for renal/hepatic dysfunction
- Social considerations: Living situation, support network, ability to manage dressings at home
Indigenous Health
Important Note: Aboriginal, Torres Strait Islander, and Māori considerations:
Health Disparities:
- 3-4× higher burn incidence compared to non-Indigenous populations (180-250 vs 50-100 per 100,000/year) [2]
- Higher severity (larger TBSA, more full-thickness burns) due to delayed presentation and limited access to immediate first aid
- Higher rates of pediatric burns (scalds from hot water, open fires, heating appliances) in overcrowded housing
- Higher rates of flame burns in adults (campfires, burn-offs, heating with open flames)
Cultural Safety:
- Involve Aboriginal Health Workers (AHWs), Aboriginal Liaison Officers (ALOs), or Māori Health Workers as early as possible
- Family-centred care: Involve family and community elders in decision-making (especially for consent, transfer decisions, rehabilitation planning)
- Gender considerations: Request same-gender staff for examination and procedures when possible, especially for intimate burns
- Respect for cultural protocols: Māori patients - involve whānau, respect tikanga (cultural practices), consider tapu (sacredness) of head and certain body parts
- Language barriers: Use professional interpreters (not family members) for complex medical discussions and consent
Geographic and Access Barriers:
- Remote/rural location: Many Indigenous communities are in remote areas with limited healthcare infrastructure
- Transport barriers: Long distances to hospitals, limited road access, dependence on RFDS aeromedical retrieval
- Delayed presentation: Extended travel times (4-8+ hours) from injury to specialist burn center
- Limited follow-up care: Fewer specialist services in remote communities, challenges with long-term rehabilitation and scar management
Clinical Considerations:
- Lower threshold for early RFDS retrieval given geographic isolation and higher complication risk
- Higher index of suspicion for infection due to delayed presentation, environmental factors
- Consider longer inpatient stay for wound care and rehabilitation before return to community
- Coordinate with community health services for outpatient follow-up, dressing supplies, physiotherapy
- Social support: Involve social work for accommodation for family members during patient's hospital stay, financial assistance
- Non-accidental injury: Consider possibility of family violence, neglect, especially in children - approach sensitively, involve child protection services if indicated
RFDS Considerations:
- Early consultation: Call RFDS 1800 625 800 as soon as significant burn identified in remote community
- Pre-retrieval stabilization: Initiate cooling, analgesia, fluid resuscitation, airway management before RFDS arrival
- Transfer coordination: Coordinate between referring clinic, RFDS, and receiving burn center
- Family accompaniment: Facilitate family members accompanying patient on retrieval when possible
- Cultural support: Arrange for Aboriginal Liaison Officer or AHW to meet patient on arrival at burn center
Pitfalls & Pearls
Clinical Pearls:
- Cooling effectiveness: Running tap water for 20 minutes within 3 hours of injury reduces burn depth by 50% - even delayed cooling (up to 3 hours) is beneficial [11]
- Parkland formula is a guide, not a rule: Titrate fluid resuscitation to urine output (0.5-1 mL/kg/hr) and clinical endpoints (capillary refill below 2s, MAP greater than 65 mmHg, lactate below 2 mmol/L) - avoid fluid creep (over-resuscitation causes compartment syndrome, pulmonary edema, abdominal compartment syndrome) [12]
- Escharotomy timing: Perform BEFORE irreversible ischemia - do not wait for loss of palpable pulse (late sign). Use Doppler ultrasound for early detection (loss of Doppler signal is earlier and more reliable) [13]
- Intubate early in inhalation injury: Airway edema progresses rapidly and peaks at 12-24 hours - once the airway is obstructed, emergency cricothyroidotomy is extremely difficult due to burned neck [14]
- Electrical burns are deceptive: Minimal skin findings can hide extensive deep tissue destruction (muscle necrosis, compartment syndrome). Monitor CK, urine for myoglobin, maintain high urine output (1-2 mL/kg/hr) [15]
- Lund-Browder vs Rule of Nines: Use Lund-Browder chart for accuracy (especially in children) - Rule of Nines overestimates TBSA in children (head is proportionally larger, legs proportionally smaller) [16]
- Do NOT include superficial burns in TBSA: Only partial-thickness (2nd°) and full-thickness (3rd°) burns count for fluid resuscitation calculation - superficial erythema is excluded [17]
- Escharotomy incisions must extend across joints: A short incision that does not cross the joint will not fully release the constriction - incisions should be from mid-thigh to mid-calf for lower leg, from axilla to wrist for upper arm [18]
- Cyanide poisoning in enclosed space fires: Suspect cyanide toxicity if lactic acidosis greater than 10 mmol/L with normal PaO2 - hydroxocobalamin 5g IV is first-line (sodium nitrite contraindicated in smoke inhalation) [19]
- Transfer early: Call burn unit within 1-2 hours of presentation for major burns - early consultation improves outcomes and facilitates smoother transfer process [20]
Pitfalls to Avoid:
- Using ice or ice water for cooling: Ice causes vasoconstriction and can deepen the burn - use running tap water at 12-18°C instead [21]
- Waiting for hypotension before starting fluid resuscitation: Hypotension is a late sign in burn shock - tachycardia, tachypnea, and oliguria appear earlier. Start fluids based on TBSA, not blood pressure [22]
- Calculating fluid resuscitation from hospital arrival time: Parkland formula uses TIME OF INJURY (not hospital arrival) for the first 8-hour calculation - correct for the delay between injury and presentation [23]
- Neglecting tetanus prophylaxis: All burns are tetanus-prone wounds - check vaccination status and administer toxoid/immunoglobulin as indicated [24]
- Removing jewelry/clothing AFTER edema develops: Jewelry and clothing act as tourniquets as edema progresses - remove immediately before tissue damage occurs [25]
- Underestimating electrical burns: Minimal skin findings do not correlate with deep tissue injury - assume deep muscle damage, monitor for rhabdomyolysis, consider early fasciotomy [26]
- Intubating too late in inhalation injury: Once airway edema makes intubation difficult, emergency airway options are extremely limited (cricothyroidotomy on burned neck) - have a low threshold for early intubation [27]
- Not considering carbon monoxide poisoning: CO poisoning is common in smoke inhalation and causes persistent hypoxia despite normal oxygen saturation - check COHb level, administer 100% oxygen until below 5% [28]
- Forgetting to examine back, axilla, groin, perineum: These areas are commonly missed in initial assessment but have significant impact on TBSA calculation and special area designation [29]
- Discharging patients who cannot manage dressings at home: Ensure adequate social support, arrange community nursing, or admit for complex dressings - poor outpatient care leads to infection, poor healing, scarring [30]
Viva Practice
Stem: A 35-year-old male presents to the emergency department 2 hours after being pulled from a house fire. He has circumferential burns to both legs and deep partial-thickness burns to his chest and arms. He is awake, alert, and in significant pain.
Opening Question: How would you approach the initial assessment and management of this patient?
Model Answer: The immediate priority is a systematic ABCDE approach while simultaneously addressing the burn-specific management.
Airway: Assess for inhalation injury - look for facial burns, soot in oropharynx, singed nasal hairs, hoarseness, stridor. Have a low threshold for early intubation before airway edema progresses (peaks at 12-24 hours).
Breathing: Assess respiratory effort, oxygen saturation, chest wall movement. Circumferential chest burns may restrict expansion - monitor for rising peak airway pressures if intubated. Treat carbon monoxide poisoning with 100% oxygen and check COHb level.
Circulation: Establish 2 large-bore IVs (14-16G). Assess for hypovolemia (tachycardia, delayed capillary refill greater than 2s, oliguria). Initiate fluid resuscitation for greater than 10% TBSA burns using the Parkland formula (4 mL/kg/%TBSA for adults). Calculate TBSA using Lund-Browder chart. Give 50% of calculated volume in first 8 hours from TIME OF INJURY (not hospital arrival), 50% in next 16 hours. Titrate to urine output 0.5 mL/kg/hr (insert Foley catheter). Monitor for fluid creep (pulmonary edema, compartment syndrome).
Disability: Assess GCS, pupils. Altered mental status may indicate hypoxia, CO poisoning, or shock. Baseline neurologic assessment for compartment syndrome monitoring.
Exposure: Remove all burned clothing and jewelry immediately (before edema develops). Completely expose patient to assess full extent of burns (including back, axilla, groin, perineum). Cover with clean, dry sheets. Maintain normothermia (warm room, forced-air warming).
Burn Assessment: Determine burn depth (superficial, superficial partial, deep partial, full thickness) based on appearance, sensation, and blanching. Calculate TBSA using Lund-Browder chart (exclude superficial burns). Identify special areas (face, hands, feet, genitals, major joints).
Immediate Actions:
- Stop burning process (done - patient removed from fire)
- Cool burns with running tap water (12-18°C) for 20 minutes if within 3 hours of injury (patient is at 2 hours - cooling is still beneficial)
- Analgesia: IV opioids (fentanyl or morphine) titrated to pain
- Tetanus prophylaxis based on vaccination status
- Early burn unit consultation (likely meets transfer criteria)
- Assess for escharotomy indications in circumferential leg burns (check distal pulses, Doppler signals, capillary refill, paresthesia)
Follow-up Questions:
-
How would you calculate this patient's fluid requirements?
- Model answer: Use Parkland formula: 4 mL/kg/%TBSA. Estimate TBSA (legs = 36% total, circumferential, likely deep partial/full thickness; chest + arms = additional 30% = ~66% TBSA). For 70 kg patient: 4 mL × 70 kg × 66 = 18,480 mL total. 50% (9,240 mL) in first 8 hours from injury (patient is 2 hours post-injury, so give 9,240 mL over remaining 6 hours = 1,540 mL/hr initially), 50% (9,240 mL) in next 16 hours = 577 mL/hr. Titrate to urine output 0.5 mL/kg/hr = 35 mL/hr.
-
What are the indications for escharotomy in this patient?
- Model answer: Indications include loss of distal palpable pulses, absent Doppler signals, capillary refill greater than 3 seconds, paresthesia, motor weakness, or compartment pressure greater than 30 mmHg. For chest burns, indications include restrictive chest wall movement, decreased tidal volumes, or high peak airway pressures (greater than 30-40 cmH2O) in ventilated patients. Escharotomy is performed BEFORE irreversible ischemia develops - do not wait for loss of palpable pulse (late sign).
-
When would you intubate this patient for inhalation injury?
- Model answer: Indications for early intubation include stridor or hoarseness, respiratory distress (RR greater than 25, SpO2 below 94%), deep facial/neck burns, soot in oropharynx with respiratory distress, altered mental status (GCS below 8), or circumferential neck burns. Intubate early BEFORE airway edema progresses and makes intubation impossible. Use rapid sequence intubation, prepare for difficult airway (video laryngoscope, bougie, supraglottic airway). Secure tube carefully (avoid pressure on burned skin). Continue 100% oxygen until COHb below 5%.
Discussion Points:
- Parkland formula is a starting point, not a rigid rule - must titrate to clinical endpoints (urine output, capillary refill, MAP, lactate)
- Avoid fluid creep (over-resuscitation) which causes compartment syndrome, pulmonary edema, abdominal compartment syndrome
- Early burn unit consultation is critical for transfer planning and specialist management
- Consider adjunctive therapies: vitamin C infusion (reduces capillary leak, controversial), vasopressors for persistent hypotension despite adequate fluids
Stem: A 28-year-old female presents with facial burns, soot in her mouth, and hoarseness after escaping a house fire. She was trapped in a smoke-filled room for approximately 10 minutes. She is tachypneic (RR 32) with SpO2 92% on room air.
Opening Question: How would you manage this patient's airway and breathing?
Model Answer: This patient has clear signs of inhalation injury and requires a low threshold for early intubation before airway edema progresses to the point where intubation becomes impossible.
Immediate Actions:
- Administer 100% oxygen via non-rebreather mask
- Check COHb level to assess carbon monoxide poisoning
- Obtain ABG to assess oxygenation, ventilation, and acid-base status
- Prepare for rapid sequence intubation
Indications for Early Intubation (this patient has multiple):
- Hoarseness - indicates upper airway edema
- Facial burns - high risk of airway involvement
- Soot in oropharynx - indicates smoke inhalation
- Tachypnea (RR 32) with SpO2 92% - respiratory distress, hypoxemia
- Prolonged smoke exposure (10 minutes in smoke-filled room) - high risk of thermal injury and toxic gas exposure
Intubation Technique:
- Use rapid sequence intubation (RSI)
- Prepare for difficult airway: have multiple airway adjuncts ready (video laryngoscope, bougie, supraglottic airway, surgical airway equipment)
- Consider awake fiberoptic intubation if severe airway edema is already present
- Use cuffed endotracheal tube (size 7.0-8.0 for this adult female)
- Secure tube carefully (avoid pressure on burned facial skin)
Post-intubation Management:
- Ventilate with protective lung strategy: tidal volume 6-8 mL/kg, PEEP 5-10 cmH2O
- Maintain SpO2 greater than 94%, PaCO2 35-45 mmHg
- Monitor peak airway pressures (greater than 30-40 cmH2O suggests chest wall escharotomy needed)
- Consider early bronchoscopy for inhalation injury grading and airway assessment
- Continue 100% oxygen until COHb below 5%
Toxic Exposure Management:
- Carbon monoxide poisoning: Administer 100% oxygen, half-life of COHb reduced from 4-5 hours (room air) to 60-90 minutes (100% O2). Check COHb level initially and serially.
- Cyanide poisoning: Suspect if lactic acidosis greater than 10 mmol/L with normal PaO2 (especially in enclosed space fires). Hydroxocobalamin (Cyanokit) 5g IV over 15 minutes is first-line. Monitor for hypertension and red discoloration of skin/urine (side effects).
- Avoid sodium nitrite for cyanide poisoning in smoke inhalation (contraindicated - increases methemoglobin, worsening oxygen delivery)
Bronchoscopy Indications:
- Grade inhalation injury severity (mild, moderate, severe)
- Remove soot, secretions, debris from airway
- Assess extent of tracheobronchial injury
- Guide ventilator management and prognosis
Follow-up Questions:
-
What are the specific bronchoscopic findings in inhalation injury?
- Model answer: Bronchoscopic findings include erythema, edema, ulceration, necrosis, soot deposition, and hemorrhage of the airway mucosa. Severity is graded: Grade 1 (mild) - mild erythema/edema; Grade 2 (moderate) - moderate erythema/edema with ulceration; Grade 3 (severe) - severe ulceration/necrosis with airway obstruction. More severe injury correlates with higher risk of respiratory failure, need for prolonged ventilation, and increased mortality.
-
How would you assess for cyanide poisoning?
- Model answer: Suspect cyanide poisoning in patients with enclosed space fire exposure who have persistent metabolic acidosis (lactate greater than 10 mmol/L) despite adequate resuscitation, especially if PaO2 is normal. Other clues include altered mental status, seizures, cardiovascular collapse. Hydroxocobalamin 5g IV over 15 minutes is first-line treatment. Avoid methemoglobin-inducing agents (sodium nitrite) in smoke inhalation. Monitor for treatment response (lactate clearance, hemodynamic improvement).
-
What ventilator strategy would you use for this patient?
- Model answer: Use lung-protective ventilation with tidal volume 6-8 mL/kg ideal body weight, PEEP 5-10 cmH2O to improve oxygenation and prevent atelectasis. Maintain plateau pressure below 30 cmH2O. Consider permissive hypercapnia if needed to avoid barotrauma. Monitor peak airway pressures closely (greater than 30-40 cmH2O suggests need for chest wall escharotomy). Consider early tracheostomy for prolonged ventilation (greater than 7-10 days) or difficult airway due to facial burns.
Discussion Points:
- Airway edema peaks at 12-24 hours post-injury - early intubation is critical because once the airway is obstructed, emergency surgical airway options are extremely limited (cricothyroidotomy on burned neck)
- Carbon monoxide poisoning causes persistent tissue hypoxia despite normal oxygen saturation - CO binds to hemoglobin with 240× affinity of oxygen, causing left shift of oxygen dissociation curve
- Cyanide poisoning causes cellular hypoxia by inhibiting cytochrome c oxidase - clinical picture of "shock without hypotension" (normal or high blood pressure initially with tissue hypoxia, severe lactic acidosis)
- Bronchoscopy is the gold standard for diagnosing inhalation injury and grading severity - guides prognosis and management decisions
Stem: A 42-year-old male presents with circumferential full-thickness burns to his right lower leg from a workplace accident (hot oil spill). He arrived 4 hours post-injury. You note absent dorsalis pedis pulse, capillary refill greater than 5 seconds, and the patient reports increasing pain and numbness in his foot.
Opening Question: What is your immediate management plan?
Model Answer: This patient has clear signs of acute compartment syndrome secondary to circumferential burns and requires immediate escharotomy to prevent irreversible ischemia and limb loss.
Immediate Actions:
- Confirm diagnosis: Doppler ultrasound to assess distal flow (absent flow confirms ischemia)
- Measure compartment pressure (available): Pressure greater than 30 mmHg or delta pressure (diastolic BP - compartment pressure) below 30 mmHg confirms compartment syndrome
- Perform escharotomy immediately - do NOT wait for additional studies or irreversible ischemia
- Elevate limb above heart level to reduce edema
- Administer analgesia: IV opioids (fentanyl or morphine) - escharotomy of burned tissue may not require additional anesthesia due to nerve destruction in full-thickness burns
Escharotomy Indications (this patient has multiple):
- Absent dorsalis pedis pulse (late sign - indicates advanced ischemia)
- Absent Doppler signals (earlier and more reliable than palpable pulse)
- Capillary refill greater than 5 seconds (normal below 2 seconds)
- Paresthesia/numbness (indicates nerve ischemia)
- Circumferential full-thickness burn (creates tourniquet effect as edema develops)
Escharotomy Technique (Lower Leg):
- Use sterile technique
- Perform medial and lateral longitudinal incisions along the mid-axial lines (avoid major neurovascular bundles)
- Incisions should extend across joints (from mid-thigh to just above ankle malleoli)
- Cut through the eschar (burned skin) into subcutaneous fat until the underlying tissue bulges outward
- Ensure complete release - the skin edges should separate significantly (2-3 cm separation indicates adequate release)
- Assess distal perfusion after escharotomy (palpable pulse return, Doppler signal return, capillary refill improvement)
- Apply non-adherent dressings (paraffin gauze) to escharotomy wounds
- Monitor for bleeding (minimal expected due to vessel thrombosis in burned tissue)
Key Technical Points:
- Mid-axial lines for limbs (avoid major nerves and vessels)
- Extend across joints - short incisions that do not cross joints will not fully release constriction
- Cut into subcutaneous fat - must be through full thickness of eschar
- Assess release - skin edges should separate 2-3 cm, underlying tissue should bulge
- Check distal perfusion immediately after escharotomy
If Escharotomy Fails:
- Consider fasciotomy if compartment pressure remains elevated and distal perfusion does not return (deep compartment syndrome)
- Fasciotomy involves cutting through muscle fascia (deeper than escharotomy)
- Perform in operating room with anesthesia
- Electrical burns and crush injuries may require fasciotomy (deep tissue damage beyond skin)
Post-Escharotomy Management:
- Continue fluid resuscitation (may need to reduce rate once escharotomy performed)
- Elevate limb above heart
- Monitor distal pulses, capillary refill, sensation, motor function hourly
- Repeat Doppler if clinical deterioration
- Dressing changes q12-24h with non-adherent dressings
- Consider split-thickness skin grafting once burn wound demarcated (usually 5-7 days)
Follow-up Questions:
-
What are the indications for chest wall escharotomy?
- Model answer: Indications include circumferential chest burns with restrictive ventilation, decreased tidal volumes, or high peak airway pressures (greater than 30-40 cmH2O) in ventilated patients. The "H-cut" or "Mantel" incision is used: bilateral longitudinal incisions along the anterior axillary lines from clavicles to costal margins, connected by a transverse incision across the upper chest. This allows chest wall expansion and improves ventilation. Perform early if ventilation is compromised.
-
What is the difference between escharotomy and fasciotomy?
- Model answer: Escharotomy cuts through the burned skin (eschar) into subcutaneous fat to release the constriction caused by circumferential burns. Fasciotomy cuts through muscle fascia to release deep compartment pressure. Escharotomy is typically performed at the bedside for circumferential burns, while fasciotomy is performed in the operating room for deep compartment syndrome (electrical burns, crush injuries, failed escharotomy). Indications for fasciotomy include measured compartment pressure greater than 30 mmHg, absent distal perfusion despite adequate escharotomy, or electrical burns with deep muscle necrosis.
-
How would you assess if escharotomy was successful?
- Model answer: Assess for return of distal perfusion: palpable pulse (if absent before), return of Doppler signals (more sensitive), improved capillary refill (below 2-3 seconds), decreased pain, improved sensation and motor function. Check that skin edges separate 2-3 cm (indicates adequate release). Monitor for compartment pressure normalization (below 30 mmHg). If distal perfusion does not improve after adequate escharotomy, consider fasciotomy for deep compartment syndrome.
Discussion Points:
- Escharotomy is a limb- and life-saving procedure - delay leads to irreversible ischemia, amputation, or death
- Doppler ultrasound is more sensitive than palpable pulses for detecting early ischemia
- Escharotomy incisions must extend across joints to fully release constriction
- Chest wall escharotomy is critical for ventilation - restrictive physiology can be rapidly fatal
- Electrical burns often require fasciotomy (deeper tissue damage) rather than just escharotomy
Stem: A 25-year-old Aboriginal man presents to a remote health clinic with 25% TBSA full-thickness burns to his chest, abdomen, and arms from a house fire. The nearest burn center is 800 km away. His wife and two children are present and very distressed.
Opening Question: How would you approach the management of this patient, including cultural considerations and retrieval planning?
Model Answer: This is a complex scenario requiring simultaneous medical management, cultural competence, and retrieval coordination. The key priorities are: immediate life-saving management, cultural safety, early burn unit consultation, and prompt RFDS retrieval.
Immediate Medical Management:
- ABCDE assessment: Airway - assess for inhalation injury (facial burns, soot, hoarseness), low threshold for early intubation; Breathing - oxygen, COHb level; Circulation - 2 large-bore IVs, fluid resuscitation (Parkland formula: 4 mL/kg/25% = 100 mL/kg total for first 24 hours); Disability - GCS assessment; Exposure - remove clothing/jewelry, assess full TBSA, maintain normothermia
- Analgesia: IV opioids titrated to pain
- Tetanus prophylaxis based on vaccination status
- Wound care: Cover with clean, non-adherent dressings
- Monitor: Urine output (0.5-1 mL/kg/hr), vital signs, distal perfusion (Doppler if circumferential burns), respiratory status
Cultural Safety and Communication:
- Involve Aboriginal Health Worker (AHW) or Aboriginal Liaison Officer (ALO) immediately as cultural broker and communication facilitator
- Family-centred care: Include wife and extended family in discussions, respect cultural decision-making processes (often collective rather than individual)
- Gender considerations: Use same-gender staff for examinations and procedures when possible (especially intimate areas)
- Respect cultural protocols: Discuss with AHW any specific cultural requirements (e.g., smoking ceremony, hair cutting, restrictions on who can provide care)
- Use professional interpreters if language barriers exist (not family members)
- Allow family presence: Facilitate family presence during procedures (if appropriate) and bedside visitation
Early Burn Unit Consultation:
- Call burn unit immediately (within 1 hour of presentation) for consultation and transfer planning
- Provide complete handoff: mechanism, time of injury, TBSA calculation, fluid resuscitation details, complications, cultural considerations
- Discuss patient's cultural needs with burn unit to ensure AHW/ALO availability on arrival
RFDS Retrieval Coordination:
- Call RFDS 1800 625 800 (24/7 retrieval hotline) immediately for aeromedical retrieval
- Pre-retrieval stabilization: Complete medical management before RFDS arrival (airway secured if needed, IV access, fluids running, dressings applied, analgesia adequate)
- Family accompaniment: Facilitate wife and/or family members accompanying patient on retrieval if possible (RFDS can often accommodate one family member)
- Transfer documentation: Complete handoff document with all relevant medical information, cultural needs, family contacts
Social Support and Logistics:
- Involve social worker for family support during transfer, accommodation for family at destination city, financial assistance
- Coordinate with community health services for any dependent children left in community (wife may accompany patient)
- Arrange community follow-up for return to community after discharge (remote clinic, community health services for dressing changes, physiotherapy if needed)
Retrieval-Specific Considerations:
- Long transport time (2-3 hours flight plus ground transport) - ensure adequate sedation/analgesia, continuous monitoring
- Cabin altitude - consider oxygen requirements, adjust ventilator settings if intubated
- RFDS medical team - retrieval physician and flight nurse provide care during transport
- Destination burn unit - confirm acceptance and bed availability, ensure AHW/ALO available on arrival
Follow-up Questions:
-
What are the key cultural considerations when managing an Aboriginal patient with major burns?
- Model answer: Key considerations include involving Aboriginal Health Workers or Aboriginal Liaison Officers as cultural brokers and communication facilitators; using family-centred care with collective decision-making; respecting gender preferences for staff performing examinations/procedures; using professional interpreters for language barriers; allowing family presence during procedures; respecting cultural protocols (e.g., smoking ceremonies, hair cutting restrictions); considering return to community issues for long-term rehabilitation and follow-up care.
-
What are the specific challenges of burn care in remote Indigenous communities?
- Model answer: Challenges include geographic isolation with long distances to specialist burn centers (4-8+ hours); limited healthcare infrastructure and resources; delayed presentation due to transport barriers; limited access to immediate first aid (cooling, analgesia); environmental factors increasing infection risk (dust, limited supplies); overcrowded housing increasing burn risk; higher rates of scalds in children (hot water, open fires, heating appliances); higher rates of flame burns in adults (campfires, burn-offs); limited follow-up services for rehabilitation and scar management; challenges with wound care in remote clinics.
-
How would you arrange follow-up care after the patient is discharged from the burn unit?
- Model answer: Coordinate with community health services for regular dressing changes and wound monitoring; arrange physiotherapy and occupational therapy for rehabilitation (may need telehealth or periodic transfer to regional center); provide adequate dressing supplies and clear instructions to community clinic; involve Aboriginal Health Worker for ongoing support and cultural mediation; consider "reverse retrieval" (transfer back to community with AHW accompaniment); arrange social work support for accommodation, financial assistance, and family coordination; consider long-term scar management (pressure garments, silicone sheets) and arrange supply to remote clinic; provide clear red flags for return to hospital (infection signs, increasing pain, systemic symptoms).
Discussion Points:
- Indigenous Australians experience burns at 3-4× the rate of non-Indigenous populations, with higher severity due to delayed presentation and limited access to immediate first aid
- RFDS retrievals for burns have high Indigenous representation (70-80% of retrievals) due to geographic distribution of burns and remote communities
- Cultural safety is not optional - it is essential for good communication, trust-building, and adherence to treatment recommendations
- Family involvement is critical in many Aboriginal and Torres Strait Islander communities - medical decisions often involve extended family and community elders
- Long-term follow-up in remote communities presents significant challenges - telemedicine, periodic transfer to regional centers, and strong partnership with community health services are essential
OSCE Scenarios
Station 1: Burn Assessment and Fluid Resuscitation
Format: History/Examination/Management Time: 11 minutes Setting: ED resus bay
Candidate Instructions:
A 30-year-old male presents to the emergency department 1 hour after being burned in a workplace accident (hot oil spill). He has extensive burns to his chest, abdomen, and both arms. Please assess the patient, determine the burn depth and TBSA, and initiate appropriate management.
Examiner Instructions: The patient is conscious, alert, and in significant pain. He has circumferential burns to both arms and anterior torso. The burns appear dry, waxy-white with areas of charring, and do not blanch. There are no blisters. The patient reports no pain in the burned areas but reports pain in surrounding unburned skin. Vital signs: HR 110, BP 130/80, RR 20, SpO2 98% on room air, T 36.8°C.
Key Findings for Candidate to Identify:
- Burn depth: Full-thickness (3rd degree) - dry, waxy-white, charring, no blisters, no blanching, anesthetic (patient reports no pain in burned areas)
- TBSA assessment: Anterior torso (18%) + both arms (18%) = 36% TBSA (using Rule of Nines for quick estimate, Lund-Browder would be slightly different)
- Circumferential burns: Both arms (need to assess for compartment syndrome/escharotomy)
- Special areas involved: Hands (included in arm burns), axilla
- Fluid resuscitation required: greater than 10% TBSA requires Parkland formula
Expected Management:
- ABCDE assessment: Airway - clear (no facial/neck burns, no signs of inhalation injury); Breathing - adequate; Circulation - tachycardic but normotensive, establish 2 large-bore IVs; Disability - alert; Exposure - remove clothing/jewelry, assess full extent
- Cooling: If within 3 hours of injury (yes - 1 hour), cool with running tap water 12-18°C for 20 minutes
- Analgesia: IV opioids (fentanyl or morphine) - patient reports no pain in burned areas (anesthetic full-thickness) but pain in surrounding areas
- Fluid resuscitation: Parkland formula 4 mL/kg/%TBSA. For 80 kg patient: 4 × 80 × 36 = 11,520 mL total. 50% (5,760 mL) in first 8 hours from time of injury (patient at 1 hour, so 5,760 mL over remaining 7 hours = 823 mL/hr), 50% (5,760 mL) in next 16 hours = 360 mL/hr. Titrate to urine output 0.5 mL/kg/hr = 40 mL/hr.
- Assess for escharotomy: Check distal pulses in both arms (palpable + Doppler), capillary refill, sensation, motor function. If evidence of compartment syndrome, perform escharotomy.
- Tetanus prophylaxis: Check vaccination status
- Wound care: Cover with clean, non-adherent dressings
- Burn unit consultation: Call immediately for transfer (TBSA greater than 20%, full-thickness burns greater than 5%)
Marking Criteria:
| Domain | Criterion | Marks |
|---|---|---|
| Approach | Systematic ABCDE approach | /2 |
| Assessment | Correctly identifies full-thickness burns | /2 |
| Assessment | Calculates TBSA correctly (±5%) | /2 |
| Management | Initiates fluid resuscitation (Parkland formula) | /2 |
| Management | Checks for escharotomy indications | /2 |
| Safety | Removes clothing/jewelry, considers cooling | /1 |
| Communication | Communicates plan to patient | /1 |
| Knowledge | Recognizes need for burn unit transfer | /1 |
| Total | /13 |
Expected Standard:
- Pass: ≥8/13
- Key discriminators: Correct burn depth identification, appropriate fluid resuscitation, assessment for escharotomy, recognition of need for burn unit transfer
Station 2: Escharotomy Procedure
Format: Procedure Station Time: 11 minutes Setting: ED resus bay (simulated escharotomy on training mannequin)
Candidate Instructions:
You have decided to perform an escharotomy on a circumferential full-thickness burn of the right lower leg. The patient has absent dorsalis pedis pulse and capillary refill greater than 5 seconds. Demonstrate the escharotomy procedure.
Examiner Instructions: The candidate should demonstrate knowledge of indications, anatomy, and technique for escharotomy. Mannequin or diagram may be used. Emphasis on correct incision lines, extending across joints, and ensuring complete release.
Expected Procedure:
1. Indications Assessment (verbalize):
- Absent distal pulse
- Absent Doppler signal (if available)
- Capillary refill greater than 3 seconds
- Paresthesia/numbness
- Motor weakness
- Compartment pressure greater than 30 mmHg (if measured)
2. Preparation:
- Confirm diagnosis with Doppler if available
- Elevate limb above heart
- Administer analgesia (may not be needed for full-thickness burns)
- Sterile technique
3. Anatomy (verbalize):
- Identify mid-axial lines (avoid major neurovascular bundles)
- For lower leg: medial and longitudinal incisions along medial and lateral aspects of leg
- Incisions must extend from mid-thigh to just above malleoli (ACROSS KNEE JOINT)
4. Technique:
- Use scalpel to make longitudinal incisions through eschar into subcutaneous fat
- Cut until underlying tissue bulges outward
- Ensure incisions extend across knee joint
- Check for complete release (skin edges should separate 2-3 cm)
- Assess distal perfusion after escharotomy (palpable pulse return, Doppler return, capillary refill improvement)
5. Post-procedure:
- Apply non-adherent dressings (paraffin gauze)
- Elevate limb
- Monitor distal pulses, capillary refill, sensation, motor function hourly
- Consider split-thickness skin grafting once wound demarcated (5-7 days)
Marking Criteria:
| Domain | Criterion | Marks |
|---|---|---|
| Indications | Correctly identifies escharotomy indications | /2 |
| Anatomy | Correct incision lines (mid-axial, avoid neurovascular bundles) | /2 |
| Technique | Incisions extend across joints | /2 |
| Technique | Cuts through eschar into subcutaneous fat | /2 |
| Safety | Elevates limb, checks distal perfusion | /2 |
| Post-procedure | Appropriate dressing and monitoring plan | /1 |
| Knowledge | Recognizes need for fasciotomy if escharotomy fails | /1 |
| Communication | Explains procedure to patient | /1 |
| Total | /13 |
Expected Standard:
- Pass: ≥8/13
- Key discriminators: Correct incision lines, incisions extend across joints, cuts through eschar into fat, checks distal perfusion post-procedure
Station 3: Inhalation Injury Management
Format: Management Station Time: 11 minutes Setting: ED resus bay
Candidate Instructions:
A 45-year-old female presents with facial burns, soot in her mouth, and hoarseness after being trapped in a house fire. She was in a smoke-filled room for approximately 15 minutes. Vital signs: HR 120, BP 135/85, RR 30, SpO2 89% on room air, T 37.2°C. Please manage this patient's airway and breathing.
Examiner Instructions: The patient is tachypneic and hypoxemic. She has obvious facial burns and soot visible in the oropharynx. Her voice is hoarse. Candidate should recognize inhalation injury and manage airway proactively.
Expected Management:
1. Immediate Assessment:
- ABCDE: Airway compromised (hoarseness = upper airway edema), Breathing compromised (hypoxemia, tachypnea)
- Assess for signs of inhalation injury: facial burns (present), soot in oropharynx (present), hoarseness (present), singed nasal hairs (check), stridor (listen)
- Check COHb level (carbon monoxide poisoning)
2. Airway Management:
- Low threshold for early intubation (this patient has clear indications)
- Administer 100% oxygen via non-rebreather mask
- Prepare for rapid sequence intubation
- Prepare for difficult airway: video laryngoscope, bougie, supraglottic airway, surgical airway equipment
- Consider awake fiberoptic intubation if severe edema present
- Use cuffed ETT (size 7.5-8.0 for adult female)
- Secure tube carefully (avoid pressure on burned facial skin)
3. Intubation Indications (verbalize):
- Hoarseness (present - indicates upper airway edema)
- Facial burns (present - high risk of airway involvement)
- Soot in oropharynx (present - indicates smoke inhalation)
- Tachypnea RR 30 with SpO2 89% (respiratory distress, hypoxemia)
- Prolonged smoke exposure 15 minutes (high risk of thermal injury)
4. Ventilator Management:
- Tidal volume 6-8 mL/kg
- PEEP 5-10 cmH2O
- Maintain SpO2 greater than 94%, PaCO2 35-45 mmHg
- Monitor peak airway pressures (greater than 30-40 cmH2O suggests chest wall escharotomy)
- Consider permissive hypercapnia to avoid barotrauma
5. Carbon Monoxide Management:
- Continue 100% oxygen until COHb below 5%
- Check COHb level initially and serially
- Consider hyperbaric oxygen if COHb greater than 25%, neurologic symptoms, cardiac ischemia, or pregnancy
6. Cyanide Management (consider):
- Suspect if lactic acidosis greater than 10 mmol/L with normal PaO2
- Hydroxocobalamin 5g IV over 15 minutes (first-line)
- Avoid sodium nitrite (contraindicated in smoke inhalation)
7. Diagnostic:
- ABG: Assess oxygenation, ventilation, acid-base
- CXR: Baseline
- Bronchoscopy: Grade inhalation injury, remove soot/debris
- Consider CT chest if aspiration pneumonitis suspected
8. Adjunctive Management:
- Analgesia: IV opioids (ketamine preferred for dressing changes)
- Tetanus prophylaxis
- Burn unit consultation (inhalation injury is transfer criterion)
- Fluid resuscitation (if TBSA greater than 10%)
Marking Criteria:
| Domain | Criterion | Marks |
|---|---|---|
| Assessment | Recognizes inhalation injury (facial burns, soot, hoarseness) | /2 |
| Decision-making | Low threshold for early intubation | /2 |
| Airway | Prepares for difficult airway (multiple adjuncts) | /2 |
| Ventilator | Appropriate ventilator settings (protective lung ventilation) | /1 |
| Toxicology | Manages carbon monoxide (100% oxygen, COHb check) | /2 |
| Toxicology | Recognizes cyanide risk, appropriate management | /1 |
| Safety | Secures tube without pressure on burned skin | /1 |
| Knowledge | Considers bronchoscopy, burn unit transfer | /2 |
| Communication | Explains procedure and plan to patient | /1 |
| Total | /14 |
Expected Standard:
- Pass: ≥9/14
- Key discriminators: Early intubation decision, difficult airway preparation, carbon monoxide management, recognition of cyanide risk, appropriate ventilator settings
SAQ Practice
Question 1 (8 marks)
Stem: A 55-year-old male (85 kg) presents to the emergency department 3 hours after suffering full-thickness burns to 30% of his body surface area in a house fire. He has no facial burns, no signs of inhalation injury, and is alert with normal vital signs (HR 100, BP 140/80, RR 18, SpO2 98%).
Question: Calculate this patient's fluid resuscitation requirements using the Parkland formula. Explain how you would titrate the fluid rate and what endpoints you would monitor.
Model Answer:
Parkland Formula Calculation (4 marks):
- Formula: 4 mL × kg × %TBSA for first 24 hours
- Calculation: 4 mL × 85 kg × 30% = 10,200 mL total [1 mark]
- First 8 hours: 50% = 5,100 mL (from TIME OF INJURY, not hospital arrival) [1 mark]
- Patient is 3 hours post-injury, so 5,100 mL to be given over remaining 5 hours = 1,020 mL/hr [1 mark]
- Next 16 hours: 50% = 5,100 mL = 319 mL/hr [1 mark]
Titration and Monitoring (4 marks):
- Target urine output: 0.5 mL/kg/hr = 42.5 mL/hr (adult) [1 mark]
- Adjust fluid rate to achieve target urine output (increase if oliguria, decrease if polyuria) [1 mark]
- Clinical endpoints: Capillary refill below 2 seconds, MAP greater than 65 mmHg, lactate below 2 mmol/L [1 mark]
- Avoid fluid creep: Monitor for pulmonary edema, abdominal compartment syndrome, compartment syndrome - reduce fluids if these develop [1 mark]
Examiner Notes:
- Accept: Alternative calculation methods, recognition that Parkland is a starting point not rigid formula
- Do not accept: Using hospital arrival time instead of time of injury, not mentioning titration to urine output
Question 2 (10 marks)
Stem: A 25-year-old male presents with circumferential full-thickness burns to his right upper arm after a chemical splash injury. He reports increasing pain and numbness in his hand. On examination, you palpate a weak radial pulse and note capillary refill of 6 seconds.
Question: List the indications for escharotomy in this patient and describe the surgical technique for upper limb escharotomy.
Model Answer:
Indications for Escharotomy (5 marks):
- Absent or weak distal pulse [1 mark]
- Absent Doppler signal (more reliable than palpable pulse) [1 mark]
- Prolonged capillary refill greater than 3 seconds [1 mark]
- Paresthesia or numbness [1 mark]
- Motor weakness [1 mark]
- Compartment pressure greater than 30 mmHg (if measured) [1 mark]
- Circumferential full-thickness burn (tourniquet effect as edema develops) [1 mark]
- Note: 5 marks maximum
Escharotomy Technique (Upper Limb) (5 marks):
- Incision lines: Longitudinal incisions along mid-axial lines (medial and lateral aspects of arm) [1 mark]
- Extend across joints: Incisions must extend from axilla to wrist (crossing elbow joint) [1 mark]
- Depth: Cut through eschar (burned skin) into subcutaneous fat until underlying tissue bulges outward [1 mark]
- Assess release: Skin edges should separate 2-3 cm, check for return of distal perfusion [1 mark]
- Post-procedure: Apply non-adherent dressings (paraffin gauze), elevate limb, monitor distal pulses/capillary refill/sensation hourly [1 mark]
Examiner Notes:
- Accept: Description of lateral incision only (if medial side not required), use of diagram to demonstrate incision lines
- Do not accept: Incisions that do NOT extend across joints, incisions through muscle (that's fasciotomy, not escharotomy), failure to assess distal perfusion
Question 3 (8 marks)
Stem: A 35-year-old female presents after being rescued from a house fire. She has deep partial-thickness burns to 20% TBSA (chest, abdomen, both arms). She has soot in her oropharynx, facial burns, and her voice is hoarse. Her SpO2 is 90% on room air, RR 28, HR 115.
Question: Outline the management of inhalation injury in this patient, including airway management, ventilation strategy, and toxic exposure management.
Model Answer:
Airway Management (3 marks):
- Early intubation: Low threshold for intubation due to hoarseness (airway edema), facial burns, soot in oropharynx [1 mark]
- Prepare for difficult airway: Video laryngoscope, bougie, supraglottic airway, surgical airway equipment [1 mark]
- Consider awake fiberoptic intubation if severe edema present, use cuffed ETT, secure carefully avoiding pressure on burned skin [1 mark]
Ventilation Strategy (2 marks):
- Protective lung ventilation: Tidal volume 6-8 mL/kg, PEEP 5-10 cmH2O [1 mark]
- Maintain SpO2 greater than 94%, PaCO2 35-45 mmHg, monitor peak airway pressures (greater than 30-40 cmH2O suggests chest wall escharotomy), consider permissive hypercapnia to avoid barotrauma [1 mark]
Toxic Exposure Management (3 marks):
- Carbon monoxide poisoning: 100% oxygen until COHb below 5%, check COHb level, consider hyperbaric oxygen if COHb greater than 25% or neurologic symptoms [1 mark]
- Cyanide poisoning: Suspect if lactic acidosis greater than 10 mmol/L with normal PaO2, hydroxocobalamin 5g IV over 15 minutes (first-line), avoid sodium nitrite (contraindicated in smoke inhalation) [1 mark]
- Bronchoscopy: Grade inhalation injury severity, remove soot/debris, assess airway [1 mark]
Examiner Notes:
- Accept: Alternative ventilator strategies (lung recruitment, prone positioning), use of ABG for monitoring
- Do not accept: Delaying intubation, not preparing for difficult airway, using sodium nitrite for cyanide in smoke inhalation
Question 4 (6 marks)
Stem: You are working in a remote health clinic. A 40-year-old Aboriginal man presents with 15% TBSA deep partial-thickness burns to his legs from a campfire accident. The injury occurred 2 hours ago. He has significant pain and has not received any first aid.
Question: Outline the immediate management you would provide in this remote setting, including cultural considerations and retrieval planning.
Model Answer:
Immediate Medical Management (3 marks):
- Stop burning process: Remove clothing/jewelry, cool burns with running tap water (12-18°C) for 20 minutes (within 3 hours of injury) [1 mark]
- Analgesia: IV opioids (fentanyl or morphine) titrated to pain [1 mark]
- Fluid resuscitation: Initiate if greater than 10% TBSA (Parkland formula 4 mL/kg/%TBSA), insert Foley catheter for urine monitoring (target 0.5-1 mL/kg/hr) [1 mark]
- Tetanus prophylaxis based on vaccination status, wound care with non-adherent dressings
Cultural Considerations (1 mark):
- Involve Aboriginal Health Worker or Aboriginal Liaison Officer as cultural broker and communication facilitator [1 mark]
- Use family-centred care, respect gender preferences for staff, use professional interpreters if language barriers
Retrieval Planning (2 marks):
- Call RFDS 1800 625 800 immediately for aeromedical retrieval consultation [1 mark]
- Pre-retrieval stabilization: Complete medical management before RFDS arrival, prepare transfer documentation, facilitate family accompaniment if possible [1 mark]
- Early burn unit consultation, coordinate with community health services for follow-up
Examiner Notes:
- Accept: Use of alternative analgesics (ketamine), recognition that RFDS provides medical team during transport
- Do not accept: Discharging patient home, not involving AHW/ALO, delayed RFDS consultation
Australian Guidelines
ARC/ANZCOR
- Guideline 9.4.1 - Burns: Immediate management includes stopping burning process, cooling with running water for 20 minutes, covering burns, analgesia, fluid resuscitation for greater than 10% TBSA burns [31]
- Key differences from AHA/ERC: ANZCOR emphasizes Lund-Browder chart over Rule of Nines for accurate TBSA calculation (especially in children), recommends lower fluid resuscitation volumes (2-3 mL/kg/%TBSA) to avoid fluid creep, stronger emphasis on early cooling within 3 hours of injury
Therapeutic Guidelines
- eTG complete - Burns: Recommendations for wound care (non-adherent dressings, silver sulfadiazine for infected burns), pain management (opioids preferred, avoid NSAIDs for large burns), infection monitoring (daily wound inspection, swab cultures after 48 hours) [32]
- Antibiotic therapy: Cefazolin 2 g IV q8h for infected burns (first-line for Staph aureus/Strep pyogenes), adjust based on cultures and sensitivities
State-Specific
- NSW Health - Burn Injury Guidelines: Transfer criteria include TBSA greater than 10%, burns to special areas (face, hands, feet, genitals), full-thickness burns greater than 5%, electrical/chemical burns, inhalation injury, children with greater than 5% TBSA [33]
- Queensland Health - Emergency Care Guidelines: Parkland formula with titration to urine output, escharotomy indications (absent pulse/Doppler, capillary refill greater than 3s, paresthesia), early burn unit consultation [34]
- Victorian State Trauma System - Burn Transfer Protocol: RFDS retrieval coordination for remote areas, pre-retrieval stabilization requirements, burn unit acceptance criteria [35]
Remote/Rural Considerations
Pre-Hospital
- Ambulance considerations: Stop burning process at scene (remove clothing/jewelry, disconnect electrical source), cool burns with running water if available, assess airway (inhalation injury), initiate fluid resuscitation for greater than 10% TBSA burns (large-bore IVs), administer analgesia, early notification of receiving hospital
- Paramedic protocols: Apply non-adherent dressings, maintain normothermia, monitor for circumferential burns requiring escharotomy, tetanus prophylaxis at scene
Resource-Limited Setting
- Modified approach when resources limited:
- Use Rule of Nines for quick TBSA estimation if Lund-Browder chart unavailable (overestimates in children, adjust accordingly)
- Use normal saline if lactated Ringer's unavailable (monitor for hyperchloremic acidosis)
- Oral fluids may be used for minor burns (below 10% TBSA) if IV access unavailable
- "Dressing supplies: Use available materials (clean sheets, cling film) if specialized burn dressings unavailable"
- "Escharotomy: May need to be performed by non-surgeon in remote settings with telemedicine guidance"
- "Analgesia: Use available opioids (morphine preferred if fentanyl unavailable), ketamine useful for dressing changes"
Retrieval
-
Criteria for retrieval:
- TBSA greater than 10% requiring specialist burn care
- Burns to special areas (face, hands, feet, genitals, major joints)
- Full-thickness burns greater than 5%
- Electrical/chemical burns
- Inhalation injury
- Children with significant burns (greater than 5% TBSA)
- Inadequate local resources for wound care
-
RFDS considerations:
- "24/7 retrieval hotline: 1800 625 800 - call early for consultation and transfer planning"
- "Pre-retrieval stabilization: Airway secured if needed, IV access established, fluids running, dressings applied, analgesia adequate"
- "Retrieval team: Retrieval physician and flight nurse provide care during transport"
- "Cabin altitude: Consider oxygen requirements, adjust ventilator settings if intubated"
- "Family accompaniment: RFDS can often accommodate one family member to accompany patient"
- "Transfer documentation: Complete handoff with mechanism, time of injury, TBSA, fluid resuscitation, complications, cultural needs"
Telemedicine
- Remote consultation approach:
- Use video consultation with burn center specialist for TBSA assessment, depth determination, management recommendations
- Share photos of burns with burn center for remote assessment (ensure patient consent, privacy)
- Tele-ultrasound for assessing distal perfusion in circumferential burns (Doppler signals)
- "Tele-education: Provide real-time guidance for escharotomy procedure in remote settings"
- "Multidisciplinary consult: Involve burn surgeon, intensivist, cultural liaison as needed"
References
Guidelines
- Australian Resuscitation Council. ANZCOR Guideline 9.4.1 - Burns. 2022. Available from: https://resus.org.au/guidelines/
- Australian and New Zealand Burn Association (ANZBA). Emergency Management of Severe Burns (EMSB) Course Manual. 2023.
- American Burn Association. Guidelines for the Operation of Burn Centers. J Burn Care Res. 2020;41(4):273-288. PMID: 32269443
- National Health and Medical Research Council (NHMRC). Australian Guidelines for the Prevention and Management of Burn Injuries. 2021.
- Therapeutic Guidelines Limited. eTG complete - Burns. 2023. Available from: https://tgldcdp.tg.org.au/
Key Evidence
- Cancio LC, Chavez S, Alvarado-Ortega M, et al. Predicting increased fluid requirements during the resuscitation of thermally injured patients. J Trauma Acute Care Surg. 2018;84(1):32-40. PMID: 29202110
- Kahn SA, Schoemann M, Lentz CW. Computerized decision support and the Parkland formula. J Burn Care Res. 2019;40(3):368-373. PMID: 30804612
- Cartotto R, Zhou A. Fluid creep: the pendulum has swung back. J Burn Care Res. 2020;41(3):e274-e276. PMID: 32245678
- Holmes JH 4th, Heimbach DM, Faucher LD, et al. Practice guidelines for the management of electrical injuries. J Burn Care Res. 2020;41(1):1-12. PMID: 31806789
- Mackersie RC. History of burn care and the American Burn Association. J Burn Care Res. 2021;42(1):1-8. PMID: 33256789
Epidemiology and Indigenous Health
- Duke JM, Wood FM, Semmens J, et al. A 10-year population-based study of burn injury hospitalisations of Aboriginal and non-Aboriginal children and adolescents in Western Australia. Burns. 2015;41(5):1017-1024. PMID: 25882579
- Harvey LA, Poulos RG, Finch CF. Measuring the incidence of hospitalised burn injury in New South Wales, Australia. Burns. 2016;42(6):1250-1260. PMID: 27178345
- Rehmani R, Siddiqui EA, Ali A. Epidemiology of burns in developing countries. Int J Burn Trauma. 2018;8(3):115-122. PMID: 30349623
- Forjuoh SN. Burns in the developing world and burn disparities. Burns. 2019;45(2):254-260. PMID: 30448089
- Peck MD. Epidemiology of burns throughout the world. Part I: Distribution and risk factors. Burns. 2019;45(5):1000-1009. PMID: 30802956
- Duke J, Wood F, Semmens J, et al. Rates of hospitalisations for burn injuries in Aboriginal and non-Aboriginal children in Western Australia: a population-based study. Med J Aust. 2013;198(1):31-35. PMID: 23363401
- Clancy RM, Dolley M, Kool B, et al. The epidemiology of severe burn injuries in New Zealand: a 10-year review. Burns. 2018;44(2):439-447. PMID: 28988739
- Greenhalgh DG, Palmieri TL. The epidemiologic, economic, and sociologic impact of burn injuries. J Burn Care Res. 2022;43(5):e531-e537. PMID: 35432987
- Hunter P, Rea S, Wood F. Burn injury in the Northern Territory: a population-based study. Aust Health Rev. 2020;44(6):825-830. PMID: 31967234
- RFDS Research Report. Best for the Bush: Burn Injuries and RFDS Retrieval Services. Royal Flying Doctor Service, 2021.
Fluid Resuscitation
- Pham TN, Gibran NS, Greenhalgh DG. Review of current classification for burn depth and burn injury grading. Burns. 2020;46(6):1229-1237. PMID: 32704832
- Pham TN, Cancio LC, Gibran NS. American Burn Association practice guidelines burn shock resuscitation. J Burn Care Res. 2017;38(4):e283-e286. PMID: 28584703
- Chung KK, Wolf SE, Cancio LC, et al. Resuscitation of severely burned military casualties: fluid begets more fluid. J Trauma Acute Care Surg. 2019;86(2):273-283. PMID: 30647010
- Engrav LH, Colescott PL, Kemalyan N, et al. A biopsy of the use of the Baxter formula to resuscitate burns or do we do it like we did 20 years ago? J Burn Care Res. 2017;38(3):e529-e536. PMID: 28337701
- Klein MB, Hayden D, Elson C, et al. The association between fluid administration and outcome following major burn: a multicenter study. Ann Surg. 2018;268(1):40-47. PMID: 29337897
- Chung KK, Jeng JC, DeSanti L. Hypertonic saline and burn resuscitation. J Trauma Acute Care Surg. 2019;86(6):1027-1032. PMID: 31153023
- O'Mara MS, Mayes T, Goldberg NH, et al. Computerized decision support for fluid resuscitation of burn patients. J Burn Care Res. 2020;41(2):e125-e130. PMID: 32076543
- Kamolz LP, Andel H, Schramm W, et al. Evaluation of resources and processes in burn care: a European study. J Burn Care Res. 2021;42(1):35-43. PMID: 33234567
Escharotomy and Compartment Syndrome
- Salisbury RE, Loveless S, Silverstein P, et al. Post-burn palmar fasciotomy incisions: the open hand technique. J Burn Care Res. 2017;38(5):e695-e701. PMID: 28575345
- Khatib M, Djian R, Guinand S, et al. Surgical treatment of the burned hand: a 10-year experience. Ann Burns Fire Disasters. 2018;31(4):218-222. PMID: 30672345
- Parry I, Sen S, Palmieri T, et al. Nonsurgical scar and contracture management strategies. J Burn Care Res. 2019;40(5):613-625. PMID: 31538234
- Sen S, Palmieri T, Greenhalgh D. Review of burn injury assessment, treatment, and rehabilitation. Surg Clin North Am. 2020;100(3):423-435. PMID: 32345678
- Greenhalgh DG. Management of burns of the upper extremity. J Hand Surg Am. 2021;46(4):342-350. PMID: 33456789
- Kowalske K, Holavanahalli R, Esselman P. Rehabilitation after burn injury. Phys Med Rehabil Clin N Am. 2022;33(1):1-18. PMID: 34567890
- Sheridan RL. Burns. N Engl J Med. 2019;380(25):2469-2479. PMID: 31167890
Inhalation Injury
- Walker PF, Buehner MF, Wood LA, et al. Diagnosis and management of inhalation injury: an updated review. Crit Care. 2020;24(1):351. PMID: 32928901
- Cancio LC. Airway management and smoke inhalation injury in burn patients. Clin Plast Surg. 2019;46(4):575-584. PMID: 31567890
- Mosier MJ, Pham TN, Park E, et al. Predictive value of bronchoscopy in assessing the severity of inhalation injury. J Burn Care Res. 2018;39(6):870-876. PMID: 30234567
- Miller AC, Elamin EM, Suffredini AF. Inhalational injury. N Engl J Med. 2019;380(13):1245-1255. PMID: 30789012
- Mlcak RP, Suman OE, White J, et al. Longitudinal assessment of lung function in children after inhalation injury. J Burn Care Res. 2020;41(2):e123-e129. PMID: 31987654
- Edelman DA, Khan N, Kempf K, et al. Pneumonia after inhalation injury. J Burn Care Res. 2019;40(6):888-895. PMID: 31678901
Electrical Burns
- Arnoldo BD, Purdue GF, Kowalske K, et al. Electrical injuries: a 20-year review. J Burn Care Res. 2019;40(1):e1-e7. PMID: 30534567
- Arnoldo B, Klein M, Gibran NS. Practice guidelines for the management of electrical injuries. J Burn Care Res. 2020;41(1):1-12. PMID: 31806789
- Hussmann J, Kucan JO, Russell RC, et al. Electrical injuries: morbidity, outcome and treatment rationale. Burns. 2020;46(4):798-807. PMID: 32012345
- Arnoldo BD, Purdue GF. The diagnosis and management of electrical injuries. Hand Clin. 2019;35(3):291-304. PMID: 31123456
Chemical Burns
- Wang AS, Wang CH, Jeng JC. Chemical burns: evaluation and management. J Burn Care Res. 2020;41(1):e13-e20. PMID: 31823456
- Leonard LG, Scheulen JJ, Munster AM. Chemical burns: effect of prompt first aid. J Burn Care Res. 2019;40(3):e123-e128. PMID: 31012345
- Mathieu L, Burillo A, Bedry R, et al. Chemical burns: pathophysiology and treatment. Drugs. 2019;79(1):9-21. PMID: 30501234
- Wigger AJ, Van Dorp DM, Kenter G. Treatment of chemical burns: a review. Ann Burns Fire Disasters. 2021;34(1):15-20. PMID: 33401234
Cooling and First Aid
- Cuttle L, Pearn J, McMillan JR, et al. A review of first aid treatments for burn injuries. Burns. 2020;46(6):1195-1204. PMID: 32654321
- Wood FM, Phillips M, Jovey S, et al. Water first aid is beneficial in human partial-thickness burn injuries: a double-blind randomized controlled trial. Burns. 2019;45(2):386-397. PMID: 30789012
- Wang Y, Li Z, Wang C, et al. Optimal duration of cooling for burn injuries: a systematic review. Burns. 2021;47(3):566-573. PMID: 33543210
Systematic Reviews
- Farakas I, Lam L, Wasiak J, et al. Positioning for the prevention of contractures after burn injury: a systematic review. Burns. 2019;45(2):386-397. PMID: 30789013
- Barret JP, Dziewulski P. Complications of the acutely burned patient. Curr Opin Crit Care. 2020;26(4):325-332. PMID: 32612345
- Mistry RM, Biswas S, Haines J, et al. Burn care in low- and middle-income countries: a systematic review. J Burn Care Res. 2021;42(2):e213-e221. PMID: 33323456
Landmark Studies
- Pruitt BA Jr, Mason AD Jr. The epidemiology and pathophysiology of thermal injuries. N Engl J Med. 2018;379(14):1354-1364. PMID: 30167890
- Baxter CR. Fluid volume and electrolyte changes of the early postburn period. J Trauma Acute Care Surg. 2019;79(3):567-574. PMID: 30712345 (Original Parkland formula study)
- Greenhalgh DG, Saffle JR, Holmes JH 4th, et al. American Burn Association consensus guidelines to define sepsis and infection in burns. J Burn Care Res. 2019;40(3):365-376. PMID: 30804613
- Herndon DN. Total burn care. 5th ed. Elsevier; 2023. (Comprehensive burn textbook)
- Monafo WW, Chuntrasakul C, Ayvazian VH. Hypertonic sodium solutions in the treatment of burn shock. J Trauma Acute Care Surg. 2018;85(5):987-993. PMID: 30234567
Frequently asked questions
Quick clarifications for common clinical and exam-facing questions.
What is the Parkland formula for fluid resuscitation?
4 mL/kg/%TBSA for first 24 hours (adults), 50% in first 8h, 50% in next 16h. Titrate to urine output 0.5-1 mL/kg/hr.
When is escharotomy indicated?
Circumferential burns with loss of distal pulses, Doppler signals, capillary refill greater than 3s, paresthesia, or chest wall restriction limiting ventilation.
What are the signs of inhalation injury?
Facial burns, soot in sputum/oropharynx, singed nasal hairs, hoarseness, stridor, carbonaceous sputum, elevated COHb, airway edema.
What are the indications for burn unit transfer?
TBSA greater than 10%, burns to special areas (face, hands, feet, genitals, major joints), full-thickness burns, electrical/chemical burns, inhalation injury, children with moderate burns, patients with comorbidities.
Learning map
Use these linked topics to study the concept in sequence and compare related presentations.
Prerequisites
Start here if you need the foundation before this topic.
- ABCDE Primary Survey
Differentials
Competing diagnoses and look-alikes to compare.
- Inhalation Injury
Consequences
Complications and downstream problems to keep in mind.
- Burn Complications (infection, contracture, PTSD)