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Folio edition · Set in Instrument Serif & Archivo

Paeds Topicsclinical-assessment-and-reasoning

Paeds · clinical-assessment-and-reasoning

Recognising the seriously ill child and paediatric assessment triangle

Also known as Seriously ill child · Sick child assessment · Paediatric Assessment Triangle · PAT · Paediatric deterioration recognition

An age- and baseline-aware fellowship approach to recognising serious paediatric illness, using the Paediatric Assessment Triangle for first impression, immediate ABCDE stabilisation, repeated reassessment, capability-based escalation or retrieval, communication, safeguarding and safe disposition.

high27 referencesUpdated 11 July 2026
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Practise this topic

  • Short-answer question1
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Target exams

RACP General PaediatricsRACP DWERACP DCERCPCH Progress+MRCPCH TheoryMRCPCH ClinicalABP General PediatricsACGME PediatricsRCPSC Pediatrics

Red flags

Reduced interaction, abnormal tone, inconsolability or altered responsivenessSevere work of breathing, poor air entry, fatigue or decreasing effortPallor, mottling, cyanosis, weak pulses or worsening perfusionOngoing convulsive seizure at 5 minutesClinically dangerous low glucose or failure to improve after correctionDeterioration despite treatment or need beyond local capabilityCaregiver concern, recurrent presentation or unexplained deterioration

Life stages

neonateinfanttoddlerpreschoolschool-ageadolescentyoung-adult-transition

Care settings

outpatientwarded-acutedelivery-roomnicupicuretrievalrural-remotetelehealth

Clinical exam formats

written-onlyracp-dce-long-caseracp-dce-short-casemrcpch-short-clinicalmrcpch-history-managementmrcpch-communicationmrcpch-videorcpsc-structured-oral

Board mappings

General and Community PaediatricsCurrent 2026 PREP curriculum — Learning Objective 1.2.1: Communicate with a child or young person in a way which is appropriate to the position of that child within their own cultureCurrent 2026 PREP curriculum — Learning Objective 2.2.1: Recognise, prioritise and manage an acutely ill infant, child or young personCurrent 2026 PREP curriculum — Learning Objective 2.2.3: Perform acute resuscitation and advanced life supportCurrent 2026 PREP curriculum — Learning Objective 2.4.4: Assess and manage infants, children and young people with potential cardiac, respiratory or neurological emergencies or acute sepsisCurrent 2026 PREP curriculum — Learning Objective 2.4.5: Manage transfer of an unwell newborn, infant, child or young personRenewed curriculum for first-year trainees from 2027 — Learning goal 5: Clinical assessment – essential general paediatricsRenewed curriculum for first-year trainees from 2027 — Learning goal 6: Clinical management – essential general paediatricsRenewed curriculum for first-year trainees from 2027 — Learning goal 9: Clinical assessment and management – child safety and maltreatmentRenewed curriculum for first-year trainees from 2027 — Learning goal 10: Clinical assessment and management – developmental and behavioural paediatricsRenewed curriculum for first-year trainees from 2027 — Learning goal 11: Acute care and proceduresRenewed curriculum for first-year trainees from 2027 — Learning goal 12: Communication with patients, families, and health professionalsRenewed curriculum for first-year trainees from 2027 — Learning goal 14: Regional, rural, and remote paediatric careRenewed curriculum for first-year trainees from 2027 — Learning goal 15: Essential general paediatricsRenewed curriculum for first-year trainees from 2027 — Learning goal 17: Acute careRenewed curriculum for first-year trainees from 2027 — Learning goal 20: Child safety and maltreatmentRenewed curriculum for first-year trainees from 2027 — Learning goal 21: Regional, rural, and remote paediatricsClinical ApplicationsMedical SciencesLong CasesShort Cases2. Professional skills and knowledge: Communication3. Professional skills and knowledge: Clinical procedures4. Professional skills and knowledge: Patient management6. Leadership and team working7. Patient safety, including safe prescribing9. Safeguarding vulnerable childrenGeneral Paediatrics: Resuscitates, stabilises and treats extremely unwell babies, children and young people, liaising with specialist teams, as necessaryGeneral Paediatrics: Assumes the role of Acute Paediatric Team Leader, liaising with primary care services and other hospital and community specialist teams to effectively manage and coordinate patient flow, staffing, safety and quality in the paediatric acute assessment and inpatient unitsGeneral Paediatrics: Recognises, investigates and manages safeguarding issues, including providing advice to general practitioners, other healthcare professionals and social care providersFoundation of Practice (FOP)Theory and Science (TAS)Applied Knowledge in Practice (AKP)ClinicalHistoryCommunicationVideoGeneral Pediatrics Content Outline — Domain 1: Preventive Pediatrics/Well-Child CareGeneral Pediatrics Content Outline — Domain 7: Emergency and Critical CareGeneral Pediatrics Content Outline — Domain 8: Child Abuse and NeglectGeneral Pediatrics Content Outline — Domain 23: EthicsGeneral Pediatrics Content Outline — Domain 24: Patient Safety, Quality Improvement, and Research MethodsGeneral Pediatrics Content Outline — Universal Task 1: Physiology and PathophysiologyGeneral Pediatrics Content Outline — Universal Task 2: Epidemiology and Risk AssessmentGeneral Pediatrics Content Outline — Universal Task 3: DiagnosisGeneral Pediatrics Content Outline — Universal Task 4: Management and TreatmentGeneral Pediatrics EPA 7: Recognizing a Severely Ill Patient, Providing Initial Management, and Mobilizing Resources Needed for Continued CareGeneral Pediatrics EPA 8: Executing Clinical Handovers Within or Across SettingsGeneral Pediatrics EPA 10: Leading Interprofessional Teams to Provide Collaborative, Family-Centered CareGeneral Pediatrics EPA 11: Promoting Equitable Care at the Level of Each Individual Patient and the Population to Address Racism and Other Contributors to Health InequitiesPatient Care 3: Organize and Prioritize Patient CarePatient Care 4: Clinical ReasoningPatient Care 5: Patient ManagementSystems-Based Practice 1: Patient SafetySystems-Based Practice 3: System Navigation for Patient Centered Care – Coordination of CareSystems-Based Practice 4: System Navigation for Patient-Centered Care – Transitions in CareInterpersonal and Communication Skills 1: Patient- and Family-Centered CommunicationInterpersonal and Communication Skills 2: Interprofessional and Team CommunicationInterpersonal and Communication Skills 3: Communication within Health Care SystemsMedical ExpertPediatrics: Transition to Discipline EPA #1 — Performing and presenting a basic history and physical examinationPediatrics: Foundations EPA #1 — Recognizing deteriorating and/or critically ill patients and initiating stabilization and managementPediatrics: Foundations EPA #8 — Communicating assessment findings and management plans to patients and/or familiesPediatrics: Foundations EPA #10 — Transferring clinical information between health care providers during handoverPediatrics: Foundations EPA #11 — Coordinating transitions of care for non-complex pediatric patientsPediatrics: Core EPA #2 — Resuscitating and stabilizing critically ill patientsPediatrics: Core EPA #8 — Recognizing and managing suspected child maltreatment and/or neglectPediatrics: Core EPA #10 — Leading discussions with patients, families and/or other health care professionals in emotionally charged situationsPediatrics: Core EPA #11 — Coordinating transitions of care for patients with medical or psychosocial complexity

Your progress

Saved locally on this device.

Practise this topic

  • Short-answer question1
  • Viva station1
  • Clinical case1

Target exams

RACP General PaediatricsRACP DWERACP DCERCPCH Progress+MRCPCH TheoryMRCPCH ClinicalABP General PediatricsACGME PediatricsRCPSC Pediatrics

Red flags

Reduced interaction, abnormal tone, inconsolability or altered responsivenessSevere work of breathing, poor air entry, fatigue or decreasing effortPallor, mottling, cyanosis, weak pulses or worsening perfusionOngoing convulsive seizure at 5 minutesClinically dangerous low glucose or failure to improve after correctionDeterioration despite treatment or need beyond local capabilityCaregiver concern, recurrent presentation or unexplained deterioration

Life stages

neonateinfanttoddlerpreschoolschool-ageadolescentyoung-adult-transition

Care settings

outpatientwarded-acutedelivery-roomnicupicuretrievalrural-remotetelehealth

Clinical exam formats

written-onlyracp-dce-long-caseracp-dce-short-casemrcpch-short-clinicalmrcpch-history-managementmrcpch-communicationmrcpch-videorcpsc-structured-oral

Board mappings

General and Community PaediatricsCurrent 2026 PREP curriculum — Learning Objective 1.2.1: Communicate with a child or young person in a way which is appropriate to the position of that child within their own cultureCurrent 2026 PREP curriculum — Learning Objective 2.2.1: Recognise, prioritise and manage an acutely ill infant, child or young personCurrent 2026 PREP curriculum — Learning Objective 2.2.3: Perform acute resuscitation and advanced life supportCurrent 2026 PREP curriculum — Learning Objective 2.4.4: Assess and manage infants, children and young people with potential cardiac, respiratory or neurological emergencies or acute sepsisCurrent 2026 PREP curriculum — Learning Objective 2.4.5: Manage transfer of an unwell newborn, infant, child or young personRenewed curriculum for first-year trainees from 2027 — Learning goal 5: Clinical assessment – essential general paediatricsRenewed curriculum for first-year trainees from 2027 — Learning goal 6: Clinical management – essential general paediatricsRenewed curriculum for first-year trainees from 2027 — Learning goal 9: Clinical assessment and management – child safety and maltreatmentRenewed curriculum for first-year trainees from 2027 — Learning goal 10: Clinical assessment and management – developmental and behavioural paediatricsRenewed curriculum for first-year trainees from 2027 — Learning goal 11: Acute care and proceduresRenewed curriculum for first-year trainees from 2027 — Learning goal 12: Communication with patients, families, and health professionalsRenewed curriculum for first-year trainees from 2027 — Learning goal 14: Regional, rural, and remote paediatric careRenewed curriculum for first-year trainees from 2027 — Learning goal 15: Essential general paediatricsRenewed curriculum for first-year trainees from 2027 — Learning goal 17: Acute careRenewed curriculum for first-year trainees from 2027 — Learning goal 20: Child safety and maltreatmentRenewed curriculum for first-year trainees from 2027 — Learning goal 21: Regional, rural, and remote paediatricsClinical ApplicationsMedical SciencesLong CasesShort Cases2. Professional skills and knowledge: Communication3. Professional skills and knowledge: Clinical procedures4. Professional skills and knowledge: Patient management6. Leadership and team working7. Patient safety, including safe prescribing9. Safeguarding vulnerable childrenGeneral Paediatrics: Resuscitates, stabilises and treats extremely unwell babies, children and young people, liaising with specialist teams, as necessaryGeneral Paediatrics: Assumes the role of Acute Paediatric Team Leader, liaising with primary care services and other hospital and community specialist teams to effectively manage and coordinate patient flow, staffing, safety and quality in the paediatric acute assessment and inpatient unitsGeneral Paediatrics: Recognises, investigates and manages safeguarding issues, including providing advice to general practitioners, other healthcare professionals and social care providersFoundation of Practice (FOP)Theory and Science (TAS)Applied Knowledge in Practice (AKP)ClinicalHistoryCommunicationVideoGeneral Pediatrics Content Outline — Domain 1: Preventive Pediatrics/Well-Child CareGeneral Pediatrics Content Outline — Domain 7: Emergency and Critical CareGeneral Pediatrics Content Outline — Domain 8: Child Abuse and NeglectGeneral Pediatrics Content Outline — Domain 23: EthicsGeneral Pediatrics Content Outline — Domain 24: Patient Safety, Quality Improvement, and Research MethodsGeneral Pediatrics Content Outline — Universal Task 1: Physiology and PathophysiologyGeneral Pediatrics Content Outline — Universal Task 2: Epidemiology and Risk AssessmentGeneral Pediatrics Content Outline — Universal Task 3: DiagnosisGeneral Pediatrics Content Outline — Universal Task 4: Management and TreatmentGeneral Pediatrics EPA 7: Recognizing a Severely Ill Patient, Providing Initial Management, and Mobilizing Resources Needed for Continued CareGeneral Pediatrics EPA 8: Executing Clinical Handovers Within or Across SettingsGeneral Pediatrics EPA 10: Leading Interprofessional Teams to Provide Collaborative, Family-Centered CareGeneral Pediatrics EPA 11: Promoting Equitable Care at the Level of Each Individual Patient and the Population to Address Racism and Other Contributors to Health InequitiesPatient Care 3: Organize and Prioritize Patient CarePatient Care 4: Clinical ReasoningPatient Care 5: Patient ManagementSystems-Based Practice 1: Patient SafetySystems-Based Practice 3: System Navigation for Patient Centered Care – Coordination of CareSystems-Based Practice 4: System Navigation for Patient-Centered Care – Transitions in CareInterpersonal and Communication Skills 1: Patient- and Family-Centered CommunicationInterpersonal and Communication Skills 2: Interprofessional and Team CommunicationInterpersonal and Communication Skills 3: Communication within Health Care SystemsMedical ExpertPediatrics: Transition to Discipline EPA #1 — Performing and presenting a basic history and physical examinationPediatrics: Foundations EPA #1 — Recognizing deteriorating and/or critically ill patients and initiating stabilization and managementPediatrics: Foundations EPA #8 — Communicating assessment findings and management plans to patients and/or familiesPediatrics: Foundations EPA #10 — Transferring clinical information between health care providers during handoverPediatrics: Foundations EPA #11 — Coordinating transitions of care for non-complex pediatric patientsPediatrics: Core EPA #2 — Resuscitating and stabilizing critically ill patientsPediatrics: Core EPA #8 — Recognizing and managing suspected child maltreatment and/or neglectPediatrics: Core EPA #10 — Leading discussions with patients, families and/or other health care professionals in emotionally charged situationsPediatrics: Core EPA #11 — Coordinating transitions of care for patients with medical or psychosocial complexity

The fellowship answer

Look from the doorway before you touch the child. If you are worried, call for help now. Assess and treat with age-adapted ABCDE, then reassess after every action. PAT is the rapid first look at Appearance, Work of Breathing and Circulation to Skin. It does not diagnose the cause and it never replaces observations, history, examination, trend, caregiver concern or a safe disposition. [1] [2] [3]

Overview & Definition

A seriously ill child is one who may lose airway, effective breathing, circulation, neurological function or immediate safety unless the team acts promptly. You do not need a diagnosis before treating a life threat. Equally, a child who looks settled may still need urgent review because of age, history, a dangerous possible diagnosis, change from baseline or caregiver concern. One normal sign never settles the question. [4] [7] [15]

Give the examiner one clear summary

State the child’s age and developmental stage, usual baseline and devices, PAT findings and current ABCDE problems. Then state the direction of change, response to treatment, leading cause groups, and the help or destination needed now. This tells the examiner how sick the child is while acknowledging that the cause may still be uncertain. [1] [16] [21]

Keep four questions separate. How severe is the illness? Is an airway, breathing, circulation or neurological problem present now? Is the child getting worse? Could a dangerous diagnosis still be present despite a calm examination? PAT helps only with the first impression. Observations, history, examination, response to treatment, trend and caregiver concern answer the rest. [2] [3] [4]

The observable pathway from doorway to disposition

1

First 30 seconds

Look before touch. Describe Appearance, Work of Breathing and Circulation to Skin. If any finding worries you, call for help and start ABCDE immediately.

2

First 5 minutes

Name a leader, allocate roles, attach appropriate monitoring, prepare age- and weight-appropriate equipment, treat each ABCDE problem as found and reassess from A after every action.

3

Focused history and examination

Ask what is different from usual and what worries the caregiver most. Add age-specific observations, focused examination, baseline, devices, exposures and targeted tests without delaying treatment.

4

Reassess and escalate

Record the intended result, actual response, adverse effects and direction of change. Call senior, PICU or retrieval teams before the child needs support your service cannot provide.

5

Disposition and communication

Choose a destination that can provide the required monitoring and rescue. Hand over trend, timed treatment and response; explain the plan to the child and caregiver; continue safeguarding work in parallel.

[1] [15] [21]

Classification

The canonical PAT is the rapid visual and auditory assessment defined in the American Academy of Pediatrics PEPP framework. Appearance uses TICLS: Tone, Interactiveness, Consolability, Look or gaze, and Speech or cry. Work of Breathing includes visible or audible effort, abnormal sounds, retractions, nasal flaring and abnormal positioning. Circulation to Skin means pallor, mottling or cyanosis. Capillary refill, pulse, blood pressure, oxygen saturation, temperature and PEWS are measured afterwards; they are not PAT domains. [2] [3]

Reviewed educational schematic of the Paediatric Assessment Triangle showing Appearance with TICLS cues, Work of Breathing, and Circulation to Skin, with measured observations and local PEWS outside the triangle
Figure 1 · Canonical PATPaediatric Assessment Triangle: a rapid first impression of how the child looks, breathes and circulates at that moment. The three canonical domains are Appearance, Work of Breathing and Circulation to Skin. Measured observations and local PEWS follow outside the triangle. All domains normal means stable at that moment, not absence of serious disease. AI-generated, medically reviewed educational schematic; not a diagnostic image or a universal score.
[2] [4]

Read the figure like this: describe exactly what you see, say which ABCDE area may be failing, and act. PAT has no numeric total. Capillary refill is not part of canonical PAT. A normal PAT means only that the three domains look normal at that moment; it is not a discharge decision. [2] [4] [7]

PAT

Hands-off first impression

  • Three observational domains
  • Seconds; no equipment required
  • Describes dominant pattern of possible organ-system failure
  • Not a diagnosis, triage score, complete examination or disposition rule

ABCDE

Primary assessment and stabilisation

  • Hands-on, prioritised life-threat survey
  • Treat each threat when found
  • Uses measurements, equipment and interventions
  • Repeat from A after each intervention or deterioration

PEWS

Setting-bound recognition and response

  • Age-banded measured observations
  • Requires a validated chart and response system
  • Trend, staffing and governance determine performance
  • A low score never cancels clinician or caregiver concern
[1] [8] [9]

PAT combinations describe a pattern, not a diagnosis. All three domains normal means a stable first impression at that moment. Abnormal Appearance alone points toward brain or metabolic dysfunction. Work of Breathing alone suggests respiratory distress; Appearance plus Work of Breathing suggests respiratory failure. Circulation to Skin alone with preserved Appearance suggests compensated shock; Appearance plus Circulation to Skin suggests decompensated shock. All three abnormal suggests cardiopulmonary failure. Each pattern tells you where to focus ABCDE first, while history, examination, observations and response establish the cause. [2] [12]

PAT pattern language and the safe next statement
Observed patternSafe interpretationWhat must follow
All three domains normalStable first impression nowAge-adjusted measurements, focused history and examination, risk assessment and reassessment
Appearance abnormal aloneBrain or metabolic dysfunction patternDisability assessment, airway and breathing check, glucose when clinically relevant and a neurological, metabolic or toxic differential
Work of Breathing abnormal aloneRespiratory-distress patternAssess effectiveness, air entry, oxygenation, fatigue and cause during ABCDE
Appearance plus Work of Breathing abnormalRespiratory-failure patternImmediate help, airway and breathing support, disability assessment and escalation
Circulation to Skin abnormal with preserved AppearanceCompensated-shock patternIntegrated circulation assessment, reversible threats, likely shock type and escalation based on available support
Appearance plus Circulation to Skin abnormalDecompensated-shock patternImmediate resuscitation, cause-directed threat control and parallel critical-care or retrieval activation
All three domains abnormalCardiopulmonary-failure patternFull resuscitation response and parallel critical-care or retrieval activation
[2] [12]

Epidemiology & Risk Factors

Do not quote one incidence for “missed deterioration.” Emergency, ward, community, retrieval and low-resource studies include different children and outcomes. The practical lesson is that every recognition tool depends on where and in whom it is used. Children with bacteraemia have had a normal PAT; caregiver concern predicted critical illness in one Australian hospital cohort; and children with medical complexity are not well represented in many studies. These findings justify senior review and reassessment, but not a universal probability or trigger. [4] [15] [16]

Child and disease context

  • Young infant or neonatal transition
  • Prematurity, chronic or multisystem disease
  • Immunocompromise or attenuated inflammatory presentation
  • Congenital heart or pulmonary vascular physiology
  • Technology dependence or personalised emergency plan

Presentation context

  • Caregiver says the child is different from usual
  • Recurrent presentation, recent discharge or prior healthcare contact
  • Poor intake, altered behaviour, seizure, collapse or unexplained injury
  • Medication exposure, ingestion, trauma or environmental risk
  • A concerning diagnosis despite presently preserved physiology

Health-system context

  • Rural distance, weather or delayed transport
  • Limited access to monitoring, airway support, critical care or vasoactive rescue
  • Telehealth constraints and poor connectivity
  • Language or communication-access barriers
  • Handover gaps, incomplete observations or unclear escalation ownership

Family and social context

  • Caregiver expertise or repeated concern
  • Health literacy, access or transport barriers
  • Racism or prior adverse healthcare experience
  • Safeguarding, family violence or uncertain caregiver authority
  • Pending results or safety net that the family cannot enact
[15] [16] [17] [21]

Season, outbreaks, travel, contacts and exposures change which causes are likely. They do not change the order of immediate care. Say, “The exposure makes infection more likely, but ineffective breathing is the problem I must treat first.” Use the same discipline with fever, pain, crying, dehydration or anxiety. These may alter observations, but they must not automatically explain deterioration. [4] [22]

A return visit is new information

Reassess from the beginning. Compare the current child with the earlier course, verify what changed, review pending results and the feasibility of the previous safety net, and explicitly re-ask caregiver concern. Previous reassurance is not evidence of current safety. [15] [19]

Pathophysiology

Children can maintain interaction and blood pressure while faster heart rate, increased breathing effort and vascular tone compensate. The amount of reserve and the expected observations change with age. Compensation is therefore a collection of findings, not a fixed sequence. When demand exceeds reserve, air entry and gas exchange fail, interaction falls, pulses weaken, organs malfunction and blood pressure may fall. Hypotension is worrying, but waiting for hypotension misses earlier circulatory failure. [5] [12]

Oxygen delivery depends on effective ventilation and oxygenation, blood oxygen content, cardiac output, tissue perfusion and cellular use. Failure at any point can make the child seriously ill. [12]

Cardiac output depends on heart rate and stroke volume, while vascular tone directs blood flow. Neonates and young infants have limited stroke-volume reserve, so heart rate contributes more to maintaining output. Tachycardia and vasoconstriction may preserve pressure and interaction for a time, but also increase demand. In a child who is hypoxic or deteriorating, a falling or abnormally low heart rate is an ominous sign, not evidence of recovery. This context-specific warning does not make every isolated bradycardia pre-arrest, as stated in Resuscitation Council UK 2025 PLS guidance. [5] [12]

Young infants have smaller airways, different respiratory mechanics and less reserve for their metabolic demand. Greater effort may initially maintain air movement, but fatigue can make ventilation worse even while retractions or visible effort lessen. This is why a suddenly quiet breathless infant may be sicker. There is no universal age threshold: count the rate under stated conditions and interpret it for the child’s exact age and context. At birth, lung aeration and circulatory transition require Resuscitation Council UK 2025 NLS guidance, not an older-child pathway. [5] [12]

Reviewed educational schematic showing age- and baseline-dependent respiratory, circulatory, neurological and metabolic loads, integrated compensation, and overlapping failure cues with a reassessment loop
Figure 2 · Compensation and failureCompensation is age-dependent and integrated. Tachypnoea, greater work of breathing, tachycardia and vasoconstriction may preserve interaction or blood pressure for a time. Failure may present as reduced effort with worsening air entry, falling interaction, weak pulses, altered consciousness, hypotension or organ dysfunction. Patterns overlap; trend and response matter. AI-generated, medically reviewed educational schematic; examples are illustrative and no sequence or threshold is universal.
[5] [12]

Read the figure like this: a quieter child after marked respiratory effort may be recovering or tiring. Recovery requires easier breathing with effective air entry, improving interaction and stable perfusion. Less effort with poorer air entry or interaction is failure until proved otherwise. The “inborn error” label in the figure means an inborn error of metabolism. [12] [22] [23]

Compensation

Reserve is being recruited

  • Increasing rate or effort
  • Tachycardia and vascular tone may preserve pressure
  • Interaction may initially remain acceptable
  • Signs must be interpreted against exact age, conditions and personal baseline

Failure

Reserve is being exhausted

  • Reduced respiratory effort with poor air entry
  • Falling interaction or altered consciousness
  • Weak pulses, worsening skin perfusion or organ dysfunction
  • Hypotension can occur late and is not a prerequisite

Response

A trend, not a diagnosis

  • State the expected change before acting
  • Reassess all affected ABCDE domains
  • Record benefit, adverse effect and unresolved threat
  • Improvement after an action does not prove one cause
[5] [12] [13]

Respiratory deterioration may start with faster breathing and more effort, then become ineffective as fatigue, limited air entry or impaired drive develops. Circulatory failure may be hypovolaemic, distributive, cardiogenic, obstructive or mixed; do not expect a fixed warm-to-cold sequence. Appearance may worsen because of hypoxia, altered ventilation, reduced perfusion, seizure, dangerous low glucose, toxin or systemic illness. Reassessment shows whether treatment helped; it does not prove one cause. [12] [13] [23]

Birth transition has different physiology and pathways from older-child resuscitation. Congenital heart disease, pulmonary hypertension, autonomic dysfunction, neuromuscular weakness and chronic respiratory support can also change the child’s usual observations and route to failure. Learn the personal baseline, communication method, device dependence and emergency plan before calling a finding “normal” or “improved.” [16] [21]

Clinical Presentation

Observe before touch unless treatment cannot wait. Describe interaction and arousability; tone and posture; cry or speech; consolability and gaze; visible and audible breathing effort; symmetry and apparent air entry; pallor, mottling or cyanosis; and caregiver-child interaction. Replace “looks sick” with what you can see and hear. If any finding is worrying, call for help and start ABCDE while someone else obtains the focused history. [1] [2] [22]

Age and development change the presentation and the examination order
Life stageHigh-value change from usualAssessment adaptation
Neonate and young infantFeeding, behaviour, tone, breathing, colour or temperature change; serious illness may occur without feverClarify gestation, birth and maternal history; observe feeding and breathing; obtain prompt senior review and relevant bedside glucose
Older infantCry, gaze, consolability, tone, wet nappies, feeding or interactionObserve with the caregiver before separation or handling; interpret limited reserve and rapid change
ToddlerLoss of play, mobility, speech, usual attachment behaviour or intakeBegin on the caregiver; use play and least-distressing steps first; reconsider ingestion, injury and safeguarding risks
Preschool childChange in play, speech, gait, toileting, feeding or participationOffer simple choices, explain before touch and ask the child directly without leading
School-age childExercise tolerance, school function, pain description, behaviour or hidden exposureTake the child’s history directly while retaining caregiver observations and seeking assent
AdolescentCollapse, chest symptoms, intake restriction, substance exposure, self-harm risk or pregnancy possibilityCreate private time when safe, explain confidentiality and its limits, and avoid adult assumptions
Young-adult transitionChange in personal plan, device support, capacity or caregiver roleTransfer baseline, emergency plan and decision-making arrangements across paediatric and adult teams
[15] [16] [17]

For the neonate and young infant, the named Victorian source is the Royal Children’s Hospital Melbourne seriously unwell neonate and young infant guideline. It supports prompt senior review, risk-directed assessment and bedside glucose, and warns that serious illness may be afebrile or non-specific. The caregiver’s account of change from baseline remains important. [15] [16]

When the presenting symptom hides the serious problem

Abdominal pain or vomiting can accompany infection, metabolic illness, poisoning or circulatory failure. Limb pain or refusal to walk can reflect infection, injury, systemic illness or a safeguarding concern. Collapse or school refusal can hide cardiac, toxic, neurological, mental-health or access-related risk. Repeat PAT and ABCDE, identify the airway, breathing, circulation or neurological problem, ask age-specific exposure and safety questions, and keep dangerous alternatives open. [20] [22] [23]

Respiratory distress means increased effort while breathing remains effective. Respiratory failure means oxygenation or ventilation is ineffective and Appearance is often abnormal. A quieter child may be improving, but less effort with poor air entry, reduced interaction or worse perfusion suggests fatigue. Pulse oximetry can overestimate oxygenation, including in children with darker skin, and it does not measure ventilation. Trust the number only when the signal is credible and agrees with the child. [2] [11] [22]

Assess circulation as a whole: pulse rate and quality, skin temperature and colour, capillary-refill technique and result, mental state, urine output, blood pressure, device function and trend. Normal blood pressure or capillary refill alone does not exclude shock. [7] [12]

Serious neurological illness may appear as irritability, poor feeding, reduced interaction, abnormal tone or posture, seizure or altered behaviour rather than a verbal complaint. [23]

Apparently reassuring features that do not terminate assessment

A normal PAT at one moment, blood pressure, capillary refill, oxygen saturation, temperature, PEWS, lactate or other single test cannot exclude serious or evolving illness. Retain age-specific risk, personal baseline, caregiver concern, direction of change and the harm of a missed diagnosis. [4] [7] [8] [11]

Differential Diagnosis

Build the differential in this order: what can kill the child now, what is most likely, what is reversible, and what is most harmful to miss. PAT tells you which part of the child may be failing. It does not tell you why. Keep the important cause groups open until focused history, examination, targeted tests and response to treatment make them less likely. [1] [12] [23]

Airway and respiratory

  • Upper-airway obstruction: abnormal upper-airway sound, position or rapid worsening with agitation
  • Lower-airway disease: wheeze or prolonged expiration with variable air entry
  • Parenchymal disease: increased effort with hypoxaemia or focal findings
  • Disordered drive or neuromuscular weakness: low effort despite ineffective breathing
  • Do not infer cause from one respiratory sign

Circulatory

  • Hypovolaemic: loss history and low-volume pattern
  • Distributive: infection or allergic context with vascular-tone failure
  • Cardiogenic: cardiac history, dysrhythmia, congestion or poor response to empiric fluid
  • Obstructive: mechanical impediment with abrupt compromise
  • Mixed physiology is possible; response and overload risk matter

Neurological and metabolic

  • Seizure, post-ictal state or central infection
  • Hypoxia or altered ventilation
  • Clinically dangerous low glucose
  • Endocrine, electrolyte or inborn metabolic disorder
  • Toxin, medication effect or withdrawal

Infection and inflammation

  • Serious infection may be occult or afebrile
  • Young infant and immunocompromised presentations may be subtle
  • Non-blanching or rapidly evolving skin findings require urgent synthesis
  • Sepsis pathway timing depends on risk group and shock, not fever alone

Cardiac and collapse

  • Congenital heart or pulmonary vascular physiology
  • Dysrhythmia or myocardial dysfunction
  • Syncope and exertional symptoms
  • Individual saturation and circulation baseline may differ
  • Do not label primary respiratory disease before checking circulation

Trauma, toxicology and environment

  • Occult injury despite initial compensation
  • Unknown substance, dose or time
  • Medication error or device-related exposure
  • Temperature or environmental insult
  • Stabilise first while obtaining collateral history

Mimics and modifiers

  • Pain, fever, crying, fear, separation or recent exertion
  • Reassess after comfort without dismissing persistent abnormalities
  • Functional or behavioural distress remains a diagnosis of exclusion when physiology is concerning
  • A response to comfort does not prove a benign cause

Safeguarding

  • Non-accidental injury, neglect, poisoning or induced illness
  • Inconsistent or developmentally implausible history
  • Unexplained recurrent deterioration or delayed presentation
  • Immediate ABCDE treatment and safety planning proceed in parallel
[12] [20] [22] [23]

A clear synthesis sounds like this: “This child has abnormal Appearance and Work of Breathing, so I am treating respiratory failure. Air entry and interaction are worsening. Airway, lower-airway, parenchymal, impaired-drive, cardiac and toxic causes remain possible. I will support breathing, check reversible causes, reassess the effect and call for senior airway or critical-care help before the exact diagnosis is settled.” [1] [11] [22]

Stable child, serious diagnosis; unstable child, uncertain diagnosis

Do not confuse diagnostic certainty with urgency. A stable child may need urgent disease-specific assessment because the missed diagnosis is dangerous. An unstable child needs immediate ABCDE treatment even when the diagnosis is uncertain. [4] [12]

Clinical & Bedside Assessment

Observe, engage, then examine

Keep the child with the caregiver when possible. Observe breathing and interaction before handling, use play or feeding when safe, and examine the least distressing parts first. Distress can change rate, effort and behaviour and can worsen an unstable airway. These steps improve the examination; they must not delay ABCDE in an unstable child. [1] [22]

Age-adapted ABCDE at the bedside

1

A — Airway

Listen for abnormal sound or silence; assess patency, position, secretion or blood, ability to vocalise and ability to maintain or protect the airway. Avoid upsetting a potentially threatened airway and summon airway expertise early.

2

B — Breathing

Count rate under stated conditions; assess work, effectiveness, symmetry, air entry, fatigue and credible oxygen-saturation trend. Support breathing and reassess; a saturation does not measure ventilation.

3

C — Circulation

Integrate pulse rate and quality, skin colour and temperature, technique-stated capillary refill, blood pressure, mental state, urine output, bleeding, access and device function. Do not diagnose a shock type from one sign.

4

D — Disability

Assess interaction, age-appropriate consciousness, pupils, posture, tone and movement; time seizure activity and check bedside glucose when relevant. Protect airway, breathing and safety while the local pathway is activated.

5

E — Exposure

Look for rash, injury, bleeding, swelling, device problems and safeguarding evidence while preserving temperature and dignity. Record objective findings and spontaneous words accurately.

[5] [7] [11] [20] [23]

D — Disability: exact AVPU and RCH age-adapted pGCS

Use AVPU for a rapid screen: A = Alert; V = Responds to voice; P = Responds to pain; U = Unresponsive. The Royal Children’s Hospital Melbourne altered-conscious-state guideline directs any V, P or U finding to formal Glasgow Coma Scale assessment. Record AVPU and reassess after immediate ABCDE care. Also perform age-adapted pGCS when baseline concern persists despite an apparently Alert screen. Never convert an AVPU letter into an assumed pGCS number. [24] [25]

ComponentScoreRCH child 4 years or olderRCH child under 4 years
Eye opening (E)4SpontaneouslySpontaneously
3To verbal stimuliTo verbal stimuli
2To painful stimuliTo pain
1No response to painNo response to pain
Best verbal response (V)5Orientated and conversesAlert; babbles, coos words to usual ability
4Confused and conversesLess than usual words, spontaneous irritable cry
3Inappropriate wordsCries only to pain
2Incomprehensible soundsMoans to pain
1No response to painNo response to pain
Best motor response (M)6Obeys verbal commandsSpontaneous or obeys verbal commands
5Localises to stimuliLocalises to pain or withdraws to touch
4Withdraws to stimuliWithdraws from pain
3Abnormal flexion to pain (decorticate)Abnormal flexion to pain (decorticate)
2Abnormal extension to pain (decerebrate)Abnormal extension to pain (decerebrate)
1No response to painNo response to pain
The linked RCH guideline is the source for every descriptor in this table. The cited paediatric comparison studies support only the warning that AVPU categories do not convert exactly to pGCS totals; they do not define these RCH descriptors. [24] [25]

This is the exact RCH under-4 and 4-or-older implementation, not a universal developmental boundary. Add E, V and M for a total out of 15, but record each component, the total, time and trend because the same total can hide different patterns. Document the child’s usual developmental, communication and neurological baseline. If a component cannot be tested, record why rather than scoring “no response.” Use the locally endorsed chart if it differs. AVPU and pGCS do not replace pupils, posture, tone, movement, glucose assessment or the rest of the neurological examination. [24] [25]

Capillary refill: methods and cut-offs must remain separate

Capillary refill is not a PAT domain. Use it later during C of ABCDE. Record the site, compression time, ambient conditions and local chart, then interpret it with pulse, skin, mental state, urine output and blood pressure. A normal result cannot rule out serious illness. [6] [7]

Source and purposeSource-specific ruleSafe use
Children’s Health Queensland CHQ-NSS-51027 version 2.0, a local Queensland PAT adaptationCentral capillary refill greater than 2 seconds is a local additionDo not import this into canonical PAT or call it an Australian national rule
Fleming measurement reviewA specified finger technique uses at least 3 seconds as abnormal under defined conditionsKeep the stated site, compression and environment
NHS England National PEWS, general children’s inpatient wardsRecords capillary refill at least 3 secondsUse only within that chart and its response system
WHO ETAT, mainly low-resource hospitalsCapillary refill greater than 3 seconds is one of three required shock signsDo not treat one sign as the complete ETAT shock definition
[6] [7]

Focused history while stabilisation proceeds

Start with the caregiver: “What is different from usual, and what worries you most?” Ask about onset, pace, breathing, feeding, urine output, interaction, sleep and mobility. Then ask about pain, temperature change, rash, collapse, seizure, exposure, trauma, ingestion, medicines, allergies, immunisation and recent healthcare. When relevant, ask privately about pregnancy, substance use, eating restriction and self-harm. Use the child, ambulance staff, records, personal plans and devices as additional sources. Do this in parallel without interrupting life-saving care. [15] [16] [18]

For a child with complex needs, first establish usual communication, behaviour, mobility and pain expression. Then establish usual heart rate, respiratory rate, saturation, respiratory support, feeding, urine output and device function. Ask about recent changes, the emergency plan, limits of treatment and what has worked before. A chronically abnormal observation is not automatically safe; compare it with the personal baseline and trend. [16] [21]

Measurement and synthesis

Heart and respiratory rates change continuously with age. Published ranges differ because studies of healthy children, low-acuity emergency patients and hospitalised children answer different questions. The Royal Children’s Hospital Melbourne acceptable ranges for physiological variables are ranges for unwell children in that setting, not universal normal values. Say whether a number is a reference range, local escalation trigger, disease-risk threshold, treatment target or the child’s baseline. Do not merge them into one universal table. [5]

Use the correct pulse-oximetry probe and site. Check that the waveform or signal is credible, the displayed pulse matches the child and perfusion is adequate. Pulse oximetry may overestimate oxygenation in darker skin. Temperature, lighting and pigmentation also affect visual recognition of pallor, cyanosis and mottling, so examine in good light and combine several sites and signs. [11]

Three time anchors that are safe only with their source attached

3
Canonical PAT domains
Appearance, Work of Breathing, Circulation to Skin; AAP PEPP-derived construct
5 min
Ongoing convulsive seizure
Resuscitation Council UK 2025 PLS guidance activates the current local status pathway
No fixed interval
Reassessment
Repeat after each intervention or meaningful change; acuity determines intensity
[1] [2] [12]

After each assessment or treatment, say and document: Is the child stable now? Which ABCDE problem is most urgent? Are they improving or worsening? What differs from baseline? Which reversible causes remain? What did the last action change? Can this service provide the next likely support? Where should the child go? Record the time, conditions and who raised concern. [15] [18] [21]

Investigations

Stabilise first, then order a test for a named question. A useful test finds an immediately reversible cause, measures failing physiology, separates urgent pathways or changes the destination. A normal panel cannot overrule a child who is worsening or remains high risk. [10] [11] [23]

Immediate bedside questions

  • Is glucose clinically dangerous in altered consciousness, seizure, shock, poor intake or toxic or metabolic concern?
  • Is the oxygen-saturation signal technically credible and concordant?
  • Does an ECG identify a rhythm branch?
  • Will a gas or lactate quantify failing physiology without delaying support?
  • Is a device malfunction creating the deterioration?

Conditional sampling

  • Cultures before antimicrobials only when this does not substantially delay time-critical treatment
  • Electrolytes, renal or hepatic indices, blood count, inflammatory markers and coagulation only for a defined question
  • Targeted toxicology, endocrine or metabolic sampling where the result changes the branch
  • Use minimum necessary volume and pain-reduction measures

Targeted imaging

  • Chest imaging only if it changes management beyond the clinical assessment
  • Ultrasound or echocardiography only within operator and interpretation competence
  • Neuroimaging or lumbar puncture only after stability and procedure risk are assessed
  • Never move an unstable child to imaging without monitoring, staff, equipment and a rescue plan

Investigation harms

  • Delay to airway, breathing or circulation support
  • Repeated pain, restraint or blood loss
  • Unsafe transport or sedation
  • Avoidable radiation
  • False-positive and incidental findings that cause low-value treatment
[10] [11] [22] [23]
Interpret urgent tests as physiology and trend, not binary reassurance
Test groupQuestion it can answerUnsafe inference to avoid
Blood gasWhether acid-base state and ventilation are failing, and whether the pattern changes respiratory, circulatory, metabolic or toxic prioritiesOne gas does not replace the child, serial clinical assessment or a technically appropriate oxygenation measure
LactateWhether a concerning metabolic or perfusion signal is present and how it changes after treatmentA normal value cannot exclude shock or serious illness; an elevated value does not identify the cause by itself
Glucose and electrolytesWhether an immediately reversible metabolic threat or a cause-specific branch is presentAn unexpected point-of-care glucose should be confirmed when feasible, but dangerous-low correction must not wait
Blood count and inflammatory markersWhether the pattern contributes to infection, inflammation, bleeding or marrow questionsNormal or mildly abnormal results cannot independently rule out serious infection in a high-risk or deteriorating child
Renal, hepatic and coagulation indicesWhether organ dysfunction, treatment risk or a cause-specific complication is emergingAn early normal result does not cancel worsening physiology; compare age, baseline and trend
Cultures and microbiologyWhether a suspected infection can be identified and later therapy refinedSampling must not substantially delay time-critical antimicrobial treatment
Imaging and point-of-care ultrasoundWhether a specific question about structure or organ function changes the immediate branch or destinationOperator limits, transport, radiation, restraint and sedation can outweigh low-probability information
[4] [10] [13] [23]

Glucose: a reversible threat without a universal threshold

Check bedside glucose promptly when the child has altered consciousness, seizure, shock, poor intake, or possible toxic or metabolic illness. If feasible, confirm an unexpected point-of-care result with a blood gas or laboratory sample because meters may be inaccurate at low levels. Do not delay correction of a clinically dangerous low. Use the current age- and context-specific pathway, recheck the glucose and escalate if it does not correct. The named Victorian source is the Royal Children’s Hospital Melbourne hypoglycaemia guideline. This page deliberately gives no universal threshold, agent, dose or infusion. [23]

Do not wait for a confirmatory sample when the child is in danger

Treat a clinically dangerous low glucose through the active local age- and context-specific pathway, then recheck and investigate the cause. “Confirm when feasible” is not permission to delay correction. [23]

Imaging and procedures

In typical bronchiolitis, chest radiography rarely changed the clinical diagnosis and was followed by more antibiotic use. NICE NG9 bronchiolitis guidance also advises against routine chest radiography because changes can mimic pneumonia and should not determine antibiotic treatment. This is a bronchiolitis-specific warning, not a ban on targeted imaging in another child. Lumbar puncture, transport-dependent imaging or a sedated procedure is premature when instability makes the procedure or movement unsafe; stabilise and seek senior or specialist input first. [10] [22]

Name the question before the test

Say: “I am ordering this test because one result changes what I do now, while the alternative supports a different plan. If neither result changes immediate treatment or destination, I will not delay care for it.” [10] [23]

Management — Resuscitation

A worrying doorway assessment starts age-adapted ABCDE immediately. Say that you are concerned, call the appropriate team, name a leader, assign roles, use closed-loop communication, prepare age- and weight-appropriate equipment, and monitor continuously where possible. Treat each problem when found, then reassess from A. History, sampling and cause-specific treatment can proceed in parallel only when they do not delay resuscitation. [1] [13] [18]

Reviewed educational schematic of a closed first-hour loop from recognising and declaring concern through ABCDE, targeted checks, expected responses, immediate reassessment, local pathway adaptation, parallel PICU or retrieval consultation, family communication, safeguarding, structured handover and disposition
Figure 3 · First-hour closed loopRecognise, declare, treat, measure response and reassess. Senior, PICU or retrieval consultation begins whenever the child may need monitoring or treatment unavailable locally, not after local options fail. Family communication and safeguarding proceed in parallel, followed by structured handover and a destination able to provide the required monitoring and treatment. AI-generated, medically reviewed educational schematic; it is deliberately pathway-agnostic and contains no universal drug, fluid, glucose, oxygen, seizure or retrieval rule.
[13] [15] [18] [21]

Read the figure like this: the child, caregiver and personal baseline stay at the centre. The loop is constant, but exact rules depend on the disease, phase, location and available support. [13] [21]

Check glucose when altered consciousness, seizure, shock, poor intake or toxic or metabolic concern makes it relevant; correct a dangerous low through the local pathway and recheck. Under RCUK 2025 PLS guidance, an ongoing convulsive seizure activates status treatment at 5 minutes. Fluid and vasoactive decisions depend on shock type, available rescue and the local pathway. Resuscitation at birth follows RCUK 2025 NLS guidance. [13] [23]

The first five minutes when the diagnosis is uncertain

1

Call and organise

State what you see, call senior, resuscitation, airway, critical-care or retrieval help as needed, identify the leader and allocate tasks.

2

A — Keep the airway open

Position the airway, clear an immediately removable obstruction or secretions, avoid agitating a threatened airway and call airway expertise before failure.

3

B — Make breathing effective

Use oxygenation or ventilation support from the active pathway. Recheck air entry, work, interaction, credible saturation and fatigue; declare failure early.

4

C — Support circulation safely

Control obvious loss, gain vascular access without repeated attempts delaying care, consider the likely shock type and risk from fluid, and reassess after every aliquot or action.

5

D — Protect the brain

Assess consciousness, protect airway and breathing, time any seizure, check glucose when relevant, correct a dangerous low through the local pathway, recheck and escalate non-response.

6

E — Expose with care

Look for rash, injury and device problems while preventing heat loss, preserving dignity and starting immediate safeguarding actions in parallel.

7

Reassess from A

Compare the child with the result you expected. Record benefit or harm, revise the differential and move to the next pathway or destination without waiting for a fixed interval.

[12] [13] [18] [23]

Emergency working weight when immediate weighing is unsafe

Use a measured weight if it can be obtained immediately without delaying life-saving care. Otherwise announce and document one temporary working weight in kilograms, including its source, method and time. [26]

Follow the local protocol: a recent reliable measured weight or credible caregiver estimate, or the service’s trained length-and-habitus method. RCUK 2025 PLS guidance uses parent or person-with-parental-responsibility report before a habitus-corrected length method in its UK hierarchy. ANZCOR Guideline 12.2 directs clinicians to local charts. Published methods vary in accuracy and are not interchangeable. [26]

Use the declared working weight with the current local paediatric cognitive aid for medicines, fluid, energy and weight-linked equipment. Still check the drug-specific body-size measure and maximum, and confirm equipment fit and function. [26]

Caregiver estimates may be stale, guessed or in the wrong units. Length-and-habitus tools depend on the population, body habitus, device version, technique and training. Total body weight is not correct for every drug or device. Age-only equations are a last local fallback, not an improvised universal formula. Re-weigh at the first safe opportunity, announce the measured value, replace the estimate and recalculate ongoing treatment. [26]

Oxygen: phase, population and jurisdiction must stay attached

RCUK 2025 PLS guidance states that respiratory, circulatory or neurological failure receives 100% oxygen initially, followed by titration. For a previously healthy child it gives a 94–98% target, using the lowest inspired oxygen fraction that achieves at least 94%. These are UK acute-rescue facts. They are not universal targets for post-resuscitation care, ventilation, chronic respiratory support or cyanotic congenital heart disease. Confirm a credible oximeter signal and follow the personal emergency plan and local pathway. [11]

Convulsive seizure: activation begins at 5 minutes

Time the seizure, protect airway and breathing, monitor, check glucose and prevent injury. RCUK 2025 PLS guidance defines a seizure continuing for at least 5 minutes as status epilepticus requiring first-line benzodiazepine treatment. Activate status treatment at 5 minutes; do not wait for two doses to fail. [23]

Circulatory support: source-specific rules are not interchangeable

First decide whether the child has shock using the whole circulation assessment. Consider the likely shock type, whether hypotension is present, whether malnutrition or fluid intolerance increases risk, and whether ventilation, critical care and vasoactive rescue are available. Decide what improvement you expect before giving fluid, reassess after each aliquot, and stop for overload or no benefit. A maximum first-hour volume is a ceiling, not a target. [12] [13] [14]

Source, population and available critical careExact source-specific fluid statementBoundary that must accompany it
Surviving Sepsis Campaign 2026, septic shock with intensive-care availabilityUp to 40–60 mL/kg in 10–20 mL/kg first-hour bolusesConditional ceiling; reassess and stop for resolution or overload
Surviving Sepsis Campaign 2026, no intensive-care availabilityNo bolus for sepsis without hypotension; up to 40 mL/kg for hypotensive septic shockAvailable critical care and hypotension change the pathway
NICE NG254, England and Wales high-risk suspected sepsisGlucose-free crystalloid 10 mL/kg over less than 10 minutes, maximum 250 mL per bolus; newborn under 28 days 10–20 mL/kgHigh-risk pathway only; do not merge with RCUK, SSC, WHO or a local chart
WHO ETAT, mainly low-resource hospitalsShock requires cold extremities, capillary refill greater than 3 seconds and a weak fast pulse; 10–20 mL/kg isotonic crystalloid over 30–60 minutes with reassessmentOne or two signs do not trigger rapid infusion; malnutrition differs
[13] [14]

FEAST found increased early mortality with saline or albumin bolus versus no bolus in its African severe-febrile-illness population. It does not prove that all boluses are harmful everywhere; it proves that a high-resource algorithm cannot be exported without regard to population and available rescue resources. If vasoactive support may be needed, activate critical-care or retrieval help in parallel. There is no audit-approved universal timing or first agent for this page; selection, concentration, preparation, access and titration belong to the dedicated shock pathway and local drug chart. [13] [14]

NLS and PLS apply at different times

Use Newborn Life Support (NLS) for resuscitation at birth and support of transition. RCUK 2025 NLS guidance is the official source for that period. During the first hospital stay, local policy defines the NLS-to-PLS boundary while experienced help is called. RCUK 2025 PLS guidance is the corresponding older-child source. [12]

Escalate before the child needs support unavailable locally

Failure is not “the child arrested.” It includes an unresolved or worsening ABCDE problem, or repeated rescue with only a temporary response. It also includes a need for unavailable airway, ventilation, vasoactive or monitoring support, or increasing transport risk. Start senior, PICU or retrieval consultation in parallel. [13] [21]

Management — Definitive & Stepwise

After immediate resuscitation, move into the pathway for the likely cause without stopping reassessment. This page does not reproduce full shock, ventilation, status, antimicrobial, toxicology or glucose algorithms. Treat the most reversible dangerous problem first while keeping other serious causes open. [12] [13] [23]

From immediate treatment to the right ongoing plan

1

Name the expected result

Before acting, state the change you expect in airway patency, breathing effectiveness, interaction, perfusion, urine output or device function.

2

Measure what happened

Repeat the affected ABCDE areas and observations. Distinguish sustained improvement, brief improvement, no response and harm.

3

Choose the cause-specific pathway

Move to respiratory support, shock, sepsis, status, toxicology, metabolic, trauma, cardiac or safeguarding care as the evidence becomes clearer.

4

Stop harmful repetition

Do not repeat treatment because the initial label feels right. Reconsider the cause, fluid overload, access problems and whether more support is needed.

5

Agree monitoring and contingency

Specify the location, staff, observation intensity, response owner, next sign of failure and what to do if transfer is delayed.

6

Handover and disposition

Transfer baseline, trend, timed actions, response, unresolved risks, tests, devices, family and safeguarding information, and the next action.

[13] [18] [21]

Improvement must make sense across several findings. An open airway must also remain open. Less work of breathing is reassuring only when air entry and interaction improve. Better blood pressure does not prove adequate perfusion. A corrected glucose needs a documented recheck and a plan for the cause. A low PEWS does not cancel concern. Reassess after each action and meaningful change rather than waiting for a universal interval. [7] [8] [12] [23]

Early PICU and retrieval consultation

Call PICU or retrieval when the child may need support your service cannot reliably provide, not after every local option has failed. Discuss the likely support, present monitoring and access, equipment and staff limits, transport time and weather, safest destination, escort, expected deterioration and what to do if transfer is delayed. Exact referral thresholds, escort arrangements, transport mode and accepting service remain local or regional. [21]

Minimum structured referral or handover
DomainContent that must cross the boundary
Identity and baselineAge, measured or estimated weight, development, usual observations, communication, function, devices and emergency plan
First impression and physiologyPAT pattern, current ABCDE findings, age-adjusted observations and direction of change
Actions and responseIntervention, time, route, expected result, actual response and adverse effect
ReasoningPrioritised threat-based differential, key tests, pending results and unresolved risks
Local limitsAccess, equipment, staff, airway or critical-care limits, transport constraints and requested destination or support
Child and familyCaregiver concern, child’s communication needs, professional interpreter, family understanding and preferences
SafetySafeguarding information, objective documentation, immediate safety plan and jurisdictional pathway already activated
ContingencyNext failure marker, action if deterioration occurs and named ownership until transfer is complete
[15] [17] [18] [21]

Keep the caregiver present when safe and assign someone to explain what is wrong, what is happening next and what remains uncertain. Speak directly to the child at their developmental level. Use a professional interpreter or communication aid when needed and check understanding. The caregiver’s knowledge of the child is clinical information. [15] [16] [17]

Specific Subtypes & Scenarios

The recognition loop stays the same, but age, presentation, baseline and setting change what you look for and how early you escalate. In each scenario: stabilise first, identify what is failing, activate the correct pathway and state which facts are specific to that source or setting. [1] [12] [16]

Neonate or young infant

  • Treat feeding, behaviour, tone, breathing or temperature change as potentially significant even without fever
  • Clarify gestation, birth, maternal and transition history
  • Seek prompt senior review and check relevant bedside glucose
  • Use NLS for resuscitation at birth; keep the first-stay NLS/PLS boundary local

Threatened airway

  • Observe sound, position, voice or cry and effort before provoking distress
  • Keep the child and caregiver in the position of comfort when safe
  • Call airway expertise early
  • Do not delay support for diagnostic examination

Breathless child becomes quiet

  • Consider fatigue, poorer air entry and falling interaction before assuming improvement
  • Reassess effectiveness, not rate alone
  • Support breathing and activate the respiratory-support pathway
  • Escalate before complete failure

Poor perfusion, cause uncertain

  • Keep dehydration, sepsis, cardiac, obstructive, haemorrhagic and mixed physiology open
  • Integrate pulses, skin, mental state, urine, blood pressure and technique-stated refill
  • Use circulatory support suited to the likely shock type and available rescue
  • Do not repeat fluid blindly when response is absent or overload appears

Subtle immunocompromised presentation

  • Absence of fever or dramatic inflammatory signs does not close serious infection
  • Compare with baseline and recent treatment
  • Use targeted sampling without delaying treatment for instability
  • Escalate on physiology and risk context

Non-blanching or evolving rash

  • Assess ABCDE before completing lesion classification
  • Document distribution and evolution objectively
  • Keep infection, haematological, inflammatory, traumatic and safeguarding causes open
  • Use the active time-critical pathway

Altered behaviour or first seizure

  • Protect airway, breathing and safety; time seizure
  • Check relevant glucose and correct a clinically dangerous low through the local pathway
  • Activate local status care at 5 minutes if convulsions continue
  • Keep infection, toxin, metabolic, traumatic and neurological causes open

Trauma with apparent compensation

  • Do not wait for hypotension
  • Control immediate threats and preserve temperature
  • Reassess repeatedly because transport or handling can change physiology
  • Consider non-accidental injury when the history or findings require it
[7] [12] [20] [23]

Adolescent collapse

  • Stabilise first, then create private history time when safe
  • Ask directly about substance exposure, self-harm, eating restriction and pregnancy possibility
  • Explain confidentiality and its safety limits
  • Do not use adult appearance to bypass paediatric baseline, consent or services

Congenital heart disease

  • Obtain the individual saturation and circulation baseline
  • Use the personal emergency plan and early subspecialty input
  • Do not apply a universal oxygen or fluid target
  • Consider cardiac and obstructive physiology when the presentation appears respiratory

Technology-dependent child

  • Assess the child and the device in parallel
  • Ask what normal device function looks and sounds like
  • Use the personal emergency and manufacturer or specialty pathway
  • Bring caregiver expertise into the escalation and handover

Severe neurodisability

  • Establish usual interaction, tone, movement, pain and autonomic signs
  • Adapt sensory input and communication
  • Treat caregiver-described change as evidence
  • Do not claim that adaptation has validated diagnostic sensitivity

Possible poisoning

  • Stabilise physiology while substance, dose and time remain uncertain
  • Seek containers, medication lists and collateral information
  • Use targeted ECG, glucose or toxicology questions when they change the branch
  • Activate the local toxicology pathway

Rural or remote clinic

  • Call retrieval before the child needs support unavailable locally
  • State equipment, staff, weather, distance and communication limits
  • Agree a delayed-transfer contingency and reassessment schedule driven by acuity
  • Package monitoring, access and handover for transport

Telehealth

  • PAT evidence is sparse in remote assessment
  • Video cannot reliably replace palpation, air entry, perfusion measurements or device verification
  • A poor connection or uncertain examination lowers the threshold for in-person review
  • Give a specific access route and contingency, not a generic reassurance

Repeated caregiver concern

  • Restart assessment rather than defending the previous decision
  • Ask what has changed and what was missed
  • Escalate despite a low score when concern and direction of change remain discordant
  • Review safeguarding and the feasibility of the safety net
[3] [15] [16] [19] [21]

Complications & Pitfalls

Most harm begins when assessment stops too early. A normal number, convenient explanation or brief response is accepted as the answer, so the child is not reassessed. Prevent this by recording the current problem, serious alternatives, intended result, actual response and next escalation action. [7] [8] [18]

Failure modes and their correction
PitfallWhy it harmsCorrective behaviour
Normal PAT or low PEWS ends assessmentOccult or evolving illness and baseline exceptions are missedContinue age- and risk-specific assessment; respond to concern and trend
Blood pressure or capillary refill used aloneCompensation and poor sensitivity create false reassuranceIntegrate multiple perfusion signs, technique and direction of change
Quieter breathing labelled recoveryFatigue and falling air entry may be misreadSeek concordant improvement in effectiveness and interaction
Abnormal observations attributed to fever, crying, pain or anxietyA plausible modifier becomes premature closureReassess after comfort and explain persistent abnormalities
Adult norms, equipment or assumptionsAge, weight, reserve and consent are ignoredUse exact age, weight estimate, local paediatric charts and trained support
Repeated distressing examination or access attemptsPhysiology and assessment validity worsen while treatment is delayedObserve first, sequence least-distressing steps and escalate access expertise
Oxygen, fluid or vasoactive rule transferred between contextsDisease phase, shock type, available rescue and baseline differName source, population, phase and stop rule beside every rule
Imaging or procedure before stabilityTransport, sedation, restraint or delay can destabiliseAsk whether the result changes the immediate branch and whether movement is safe
Caregiver or nursing concern discountedBaseline change and early deterioration information are lostElicit, document and provide escalation irrespective of score
Poor referral or shift handoverTimed actions, response and contingencies disappearUse structured transfer with read-back and named ownership
Safeguarding postponed until diagnosisImmediate safety and evidence may be lostStabilise first while objective documentation and the local pathway proceed in parallel
Transient response accepted as diagnosisMixed or alternative causes remain hiddenTreat response as a trend; repeat full synthesis
[7] [8] [10] [14] [15] [18] [20]

At handover, watch for anchoring on the previous diagnosis, choosing tests only to confirm it, carrying forward the referral label and hierarchy that silences bedside concern. PAT followed by ABCDE and reassessment helps only if the team is willing to revise its view when the child or trend does not fit. [8] [18]

After stabilisation, look actively for harm from treatment. Check airway or access complications, fluid overload, heat loss, repeated sampling, medication or device error, and pressure or restraint injury. Also look for deterioration during movement. The fact that the child did not arrest does not prove an intervention or transfer was harmless. [14] [21]

Classic examiner errors

Do not put capillary refill inside canonical PAT or harmonise its cut-offs. Do not blend oxygen targets or turn a fluid ceiling into a goal. Activate status care at 5 minutes; do not wait for two failed benzodiazepine doses. Do not publish one glucose threshold, import PLS into birth transition or let a low score cancel concern. [2] [6] [8] [13] [23]

Prognosis & Disposition

Disposition follows the trend and response, not one reassuring observation. Consider the child’s age, reserve, underlying disease and the duration and severity of organ dysfunction. Then consider reversibility, treatment harm, local support, transport risk and whether the family can carry out the plan. There is no universal observation time or PICU threshold on this page. [12] [19] [21]

Critical care or retrieval

  • Unresolved or worsening ABCDE threat
  • Need for support, monitoring or expertise unavailable locally
  • Repeated or transient response with likely further deterioration
  • Transport risk that requires early specialist planning

Ward, high-dependency or observation

  • Physiology currently supported but trend, age, diagnosis or baseline needs close reassessment
  • Monitoring and staffing can detect and respond to failure
  • Pending tests or treatment response still change disposition
  • A named escalation pathway exists

Discharge only when defensible

  • Sustained improvement or stability after appropriate reassessment
  • No unresolved immediate threat or high-harm diagnostic concern
  • Caregiver concern addressed and understanding confirmed
  • Specific warning changes, access route, follow-up and pending-result ownership agreed
[15] [19] [21]

A useful safety net says what change to watch for, how urgently to act, and exactly where or how to get help. It also states when review will occur, who owns pending results and what to do if access is difficult. NICE fever-in-under-5s guidance provides an England-and-Wales example. “Return if worried” alone is not enough. No leaflet, video, call-back interval or follow-up time is best for every child. Check understanding with teach-back or another method and document it. [19]

Before the child leaves your care

1

Reassess the direction of change

Repeat the relevant PAT and ABCDE domains under stated conditions and compare with baseline and the expected result.

2

Close unresolved loops

Name residual diagnostic risk, pending results, medication or device changes and who will act on each.

3

Make access executable

Give warning changes, urgency, destination or contact route and a contingency for transport, language or cost barriers.

4

Check understanding

Speak to the child at the appropriate level, use professional language access when needed and confirm caregiver understanding.

5

Connect follow-up

Involve the medical home, primary care, community nursing or subspecialty team according to the child’s needs and personal plan.

[16] [17] [19]

After a critical event, explain what happened and what remains uncertain. Invite questions and caregiver observations, and consider debriefing for the child, family and team when appropriate. [18]

Recurrent presentation or unexplained deterioration needs senior diagnostic review and may need safeguarding reassessment. [20]

For young people moving to adult services, transfer the baseline, devices, emergency plan, capacity and caregiver roles instead of rebuilding them during the next crisis. [16]

Special Populations

Adapt how you observe, communicate and examine, but do not lower the standard for recognising deterioration. Evidence is sparse for recognition tools in disability, neurodiversity, technology dependence, telehealth and many low-resource settings. Present these adaptations as safer communication and assessment practices, not as proven improvements in diagnostic accuracy. [3] [16]

Population or contextAdaptation that changes careBoundary
Premature, ex-premature, neonateUse gestation, birth and transition history; compare feeding, tone, temperature, breathing and personal baseline; keep NLS birth-transition rules distinctDo not import older-child pathways into birth transition
ImmunocompromisedLower threshold for senior assessment when physiology or baseline changes despite attenuated signs; use treatment history and targeted testingAbsence of fever cannot independently reassure
Congenital heart disease, pulmonary hypertension or palliative planUse individual saturation, circulation, device and escalation plan; involve the usual team earlyNo universal oxygen, fluid or disposition target
Complex chronic or technology-dependent childAssess child and device together; use caregiver expertise, baseline and emergency plan; hand over device detailsDo not label chronic abnormal observations either normal or acute without trend
Disability, neurodiversity or sensory differenceAdapt environment, sequence, pain cues and communication; use assistive methods and usual behaviourAdaptation is required, but validated sensitivity gain is not established
Aboriginal and Torres Strait Islander child and familyAsk what culturally safe communication, family participation and connection to Country require; address distance and access without stereotypeCulture never replaces individual history or physiology
Māori child and whānauSupport whānau participation and relevant local tikanga as defined by the child and whānau; verify Aotearoa service pathwaysDo not treat Māori children and whānau as homogeneous
Migrant, refugee or asylum-seeking familyUse a professional interpreter, clarify records, immunisation and exposure history, and acknowledge trust and access barriersA family member should not interpret a safeguarding conversation
Out-of-home care or youth justiceVerify caregiver authority, consent route, records and safeguarding coordination while urgent care proceedsLegal and agency routes are jurisdiction-specific
Gender or sexual diversity and confidential adolescent careAddress the young person directly, offer privacy when safe and explain confidentiality and safety limitsDo not let social history distract from urgent ABCDE problems
Maltreatment or family violenceStabilise first; use non-leading necessary questions, objective documentation and the active safeguarding pathwayReporting thresholds and agencies vary by jurisdiction
Socioeconomic disadvantage or housing and transport insecurityDesign a safety net and follow-up the family can enact; state a contingency when access failsA theoretically correct plan is unsafe if it is inaccessible
[11] [16] [17] [19] [20]

Professional interpreters improve included outcomes compared with ad hoc or no interpretation, although the evidence covers limited populations and delivery methods. Speak directly to the child in developmentally appropriate language, state the immediate concern and next action, acknowledge uncertainty and check understanding. An interpreter or communication aid is a safety measure, not a courtesy. [17]

Safeguarding runs in parallel with medical care, but immediate stabilisation and safety come first. Ask only necessary open, non-leading questions. Explain confidentiality and information sharing, document objective findings and spontaneous words accurately, preserve evidence when safe, and use the local safeguarding pathway. Reporting thresholds, consent rules and agencies differ by Australian state or territory, UK nation, US state and Canadian province or territory. [20]

Evidence, Guidelines & Regional Differences

What the evidence can and cannot support

PAT gives a consistent rapid first impression, and trained staff can use it. Its reliability and validity still vary with the domain, rater, training, setting, exclusions and outcome studied. There is no justified single pooled sensitivity, specificity, area under the curve or kappa for all settings. Neonates, older adolescents, remote and low-resource care, and children with complex baselines remain under-represented. A normal PAT cannot exclude serious infection or evolving disease. [2] [3] [4]

PEWS tools differ and depend on the chart, complete observations, training, staffing, response system and governance. Positive predictive value may be low. The EPOCH cluster randomised trial found no reduction in all-cause hospital mortality after BedsidePEWS implementation. Teach the full recognition-and-response system, not the score alone. Clinician or caregiver concern can justify escalation despite the number. [8] [9] [15]

There is no justified universal vital-sign range, PEWS chart, capillary-refill method, oxygen target, glucose threshold, fluid strategy, vasoactive timing, retrieval trigger, safeguarding route, handover mnemonic, observation interval or safety-net medium. Attach each rule to its population, purpose, conditions, jurisdiction and available support. Where evidence is weak, say so rather than inventing precision. [5] [6] [8] [13] [19] [21] [23]

2018

EPOCH

JAMA

Cluster randomised trial of BedsidePEWS implementation in hospitalised children

Key finding

The intervention did not reduce all-cause hospital mortality.

Practice change

Do not equate prediction or implementation with proven mortality benefit; evaluate the complete local response system.

[9]
2011

FEAST

New England Journal of Medicine

Randomised fluid-bolus trial in African children with severe febrile illness

Key finding

Saline or albumin bolus increased 48-hour mortality compared with no bolus in that population.

Practice change

Fluid strategy must remain specific to the population, shock type and available rescue; do not transplant protocols uncritically.

[14]

Caregiver concern has a strong recent signal, but it comes from one Australian hospital cohort and does not establish a universal likelihood ratio or response tier. Evidence supports professional interpretation but remains limited. Adaptations for complex children and disability are clinically necessary, although direct diagnostic-accuracy evidence is sparse. Pulse-oximetry disparity across skin colour is credible; this page offers no correction factor. [11] [15] [16] [17]

Jurisdictional implementation

Australia and Aotearoa New Zealand: the Australian national deterioration standard requires individual monitoring and graphical trends. Locally agreed criteria must include worry and direct patient or family escalation. The standard does not mandate one national paediatric score. [8] [15]

ANZCOR Guideline 12.2 is the 2026 regional PALS source. Retrieval, observation charts, mandatory reporting, consent and exact escalation routes remain state-, territory-, district- or service-specific. In Aotearoa New Zealand, verify the active local deterioration, retrieval and safeguarding system rather than borrowing an Australian threshold. [8] [15] [21]

Global and low-resource settings: WHO ETAT is designed mainly for low-resource hospitals and non-specialists. [14]

The WHO ETAT three-sign shock definition and slower fluid approach must remain attached to that population. FEAST explains why apparently familiar interventions can change effect when population and available rescue resources change. [14]

Board and assessment distinctions

RACP current PREP curriculum candidates in 2026 must keep those learning objectives separate from the renewed curriculum for new first-year trainees from 2027. [1]

RCPCH Progress+ outcomes are curriculum expectations; MRCPCH FOP, TAS and AKP are theory classifications, while Clinical History, Communication, Video and short clinical stations are assessment formats. [15] [17]

The 2024 public MRCPCH face-to-face normal circuit describes two Communication and two Video stations of 9 minutes each; do not invent marks, pass standards or confidential station content. The clinical reason to preserve these distinctions is that concern, communication access and family escalation are evaluated in different instruments, not interchangeable scores. [15] [17]

The RACP General Paediatrics specialty-development page is the implementation source for that 2026-to-2027 transition; the RCPCH Generic Syllabus for Specialty Paediatric Training provides the specialty-level board mapping used alongside Progress+. [18]

The ABP General Pediatrics Content Outline classifies written examinations; ABP Core EPAs are workplace activities. [18]

ACGME Pediatrics Milestones and the 2026 Program Requirements govern residency development and accreditation, not ABP certification. Milestone Level 4 is a goal, not an automatic graduation or certification requirement. [18]

RCPSC Transition to Discipline EPA 1 and Foundations EPA 1 separate the basic history, examination and presentation task from deterioration recognition and initial stabilisation. Structured handover and transfer planning based on available support remain clinically important across these frameworks. [18] [21]

How this topic is examined
Board or formatWhat the candidate must demonstrate
RACP DWEInterpret an age-adapted vignette and trend, identify the dominant threat and choose the safest next action without waiting for a diagnosis
RACP DCE long caseIntegrate baseline, physiology, comorbidity, development, devices, family impact, psychosocial context and immediate plus longitudinal plan
RACP DCE or MRCPCH short clinicalObserve and examine breathing, perfusion and interaction, describe technique and summarise severity plus differential
MRCPCH History and CommunicationElicit caregiver concern and age-specific risk; explain urgent escalation and uncertainty using developmentally appropriate language
MRCPCH VideoDescribe PAT observations, state what video cannot assess and give the next in-person action
ABPApply content domains and universal tasks in written assessment; distinguish these from workplace EPAs
ACGMEDemonstrate developmental milestones in clinical reasoning, patient management, safety, transitions and communication
RCPSC structured oralRecognise evolving instability, stabilise, seek assistance, reassess and hand over across tertiary or rural contexts
[15] [18] [21]

Exam Pearls

Exam day cheat sheet
Seriously ill child: examiner-ready frame

Doorway

  • Observe before touch
  • Name PAT domains objectively
  • Declare whether help is needed now
  • Do not diagnose from PAT

Primary survey

  • ABCDE and treat threats as found
  • Use age, weight and personal baseline
  • Check immediately reversible threats
  • Repeat from A after intervention

Reasoning

  • Prioritise threat, likelihood, reversibility and harm from delay
  • Keep PAT pattern and cause separate
  • Use targeted tests only if they change the branch
  • Treat response as trend, not proof

Escalation

  • Call PICU or retrieval before the child needs support unavailable locally
  • State failure markers and contingency
  • Give structured handover
  • Preserve family and safeguarding information

Boundaries

  • No harmonised CRT
  • No blended oxygen or fluid rule
  • Status pathway at 5 minutes
  • No universal glucose threshold
  • NLS at birth

Disposition

  • Require sustained improvement or stability
  • Resolve pending-result ownership
  • Give warning, urgency, access and follow-up
  • Check understanding

“PAT first impression → help if threatened → age-adapted ABCDE with treatment → targeted reversible-threat checks → immediate reassessment → escalation based on available local support, structured handover and safe disposition.”

[1] [6] [13] [18] [19] [23]
Viva: the tachypnoeic child becomes quiet

Do not say “improved” until breathing effectiveness is reassessed. Recheck Appearance and full ABCDE, including air entry, work, respiratory rate under stated conditions, credible saturation, interaction, perfusion and glucose when relevant. Less effort with poorer air entry or interaction means fatigue and impending failure. Call airway or critical-care help, support breathing through the active pathway, state the improvement you expect and reassess from A. [11] [12] [22] [23]

Viva: concern exceeds the PEWS

Say: “The score is one input. I am concerned because interaction, breathing or perfusion and the direction of change differ from baseline, and the caregiver reports deterioration. I am escalating now through the clinician- or family-concern route while I repeat ABCDE and verify the observations.” A low score cannot cancel a high-risk presentation, worsening trend or baseline exception. [8] [9] [15]

Structured oral: rural retrieval

State the current ABCDE problem and treatment already under way. Ask what monitoring, airway, vascular-access, staff and transport resources are available. Call retrieval early, agree the destination, treatment to continue, expected response, deterioration plan and handover, and explain uncertainty and transport delay to the family. Do not invent a universal threshold or wait until all local options have failed. [18] [21]

A speakable 60-second viva answer

“From the doorway I first assess Appearance, Work of Breathing and Circulation to Skin. If any domain or the caregiver worries me, I call for help immediately. PAT gives a rapid snapshot, not a diagnosis. I then assess and treat A, B, C, D and E in order, using age-adjusted observations, the child’s usual baseline and appropriate equipment. After each action I return to A and check whether airway patency, breathing, interaction or perfusion actually improved. In parallel I ask what is different from usual, take a focused age-specific history, review devices and emergency plans, and keep dangerous causes open. I escalate to senior, PICU or retrieval teams before local support is exceeded. I hand over the trend, timed treatments and response, communicate directly with the child and caregiver, continue safeguarding in parallel, and choose disposition only after sustained reassessment.” [1] [3] [15] [21]

Common examiner traps

Do not put capillary refill inside canonical PAT. Do not diagnose from a PAT combination. Do not let a normal PAT, PEWS, blood pressure, capillary refill, saturation, temperature or single test overrule the child, trend or caregiver. Do not blend source-specific oxygen, fluid or capillary-refill rules. Do not turn a fluid ceiling into a target or wait beyond 5 minutes to activate the status pathway. Do not publish one glucose threshold or use PLS for birth transition. Never delay treatment for diagnostic completeness or retrieval until local support is exhausted. [2] [4] [6] [7] [8] [11] [13] [15] [21] [23]

References

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