MedVellum
Clinical Atlas OS
Exam atlas

ACEM Fellowship

Emergency medicine preparation built around the way a shift actually feels: resuscitation first, danger recognition early, toxicology and procedures close at hand, and exam prompts mapped to Australian and New Zealand practice.

172
Topics
Resus
Core mode
OSCE + SAQ
Exam lens
Emergency command view
Resuscitation first

Airway, breathing, circulation, shock, sepsis, trauma, and peri-arrest patterns.

Toxicology localised

Overdose, envenomation, antidotes, and Australian formulary context.

Exam-ready actions

OSCE behaviour, escalation language, and written-answer structure.

Practical

Clinical Stations

Communication, resuscitation, procedure, and handover moments presented as exam-performance frames.

High yield

Toxicology

Local toxidromes, antidotes, venom pathways, ECG clues, and disposition decisions.

Written

Fellowship Written

Structured answer stems and clinical reasoning prompts for SAQ-style preparation.

172topics available
ARC / ANZCOR framingwhere clinically relevant
Safety-firstred flags and escalation
172 results
ACEM
Emergency
AI-generated

Acute Angle-Closure Glaucoma

Acute angle-closure glaucoma (AACG) is a vision-threatening condition caused by sudden blockage of aqueous humor outflow... ACEM Fellowship Written, ACEM Fellow

Ophthalmology24 Jan 2025
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
Emergency
AI-generated

Acute Behavioural Disturbance

ABD encompasses a spectrum from mild agitation to life-threatening excited delirium syndrome (ExDS). Causes include subs... ACEM Primary Written, ACEM Fellowshi

Psychiatric24 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
AI-generated

Acute Bronchiolitis - Adult

Acute bronchiolitis in adults is an inflammatory condition of the small airways (bronchioles, below 2 mm diameter) most ... ACEM Primary Written, ACEM Primary V

Respiratory Emergencies
Emergency Medicine
Respiratory Medicine
High evidence
ACEM Primary Written
+1
Open atlas page
ACEM
AI-generated

Acute Bronchiolitis - Paediatric

Bronchiolitis is an acute viral infection of the lower respiratory tract, primarily affecting infants aged 2-12 months. ... ACEM Primary Written, ACEM Primary V

Paediatrics23 Jan 2026
Emergency Medicine
Paediatrics
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Acute Epiglottitis

Acute epiglottitis is a life-threatening inflammatory condition of the epiglottis and supraglottic structures that can p... ACEM Primary Written, ACEM Primary V

Airway Emergencies
Emergency Medicine
Otolaryngology
High evidence
ACEM Primary Written
+1
Open atlas page
ACEM
Emergency
AI-generated

Acute Heart Failure

Acute heart failure encompasses both new-onset heart failure and acute decompensation of chronic heart failure (ADHF), p... ACEM Primary Written, ACEM Fellowshi

Cardiovascular24 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Acute Ischemic Stroke - Thrombolysis

Acute ischemic stroke accounts for 87% of all strokes, with mortality of 15-30% at 30 days if untreated. Time is brain –... ACEM Primary Written, ACEM Fellowshi

Neurological24 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Acute Ischemic Stroke - Thrombolysis and Thrombectomy

Acute ischemic stroke accounts for 87% of all strokes, with mortality of 15-30% at 30 days if untreated. Time is brain –... ACEM Fellowship Written, ACEM Fellow

Neurological24 Jan 2026
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
Emergency
AI-generated

Acute Kidney Injury - Emergency Management

Acute Kidney Injury (AKI) in the emergency department requires rapid assessment to identify reversible causes (pre-renal... ACEM Fellowship Written, ACEM Fellow

Renal/Nephrology24 Jan 2026
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
AI-generated

Acute Pericarditis

Acute pericarditis is the most common pericardial disease, accounting for 5% of ED chest pain presentations. While most ... ACEM Fellowship Written, ACEM Fellow

Cardiovascular24 Jan 2026
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
Emergency
AI-generated

Acute Psychosis

Psychosis describes a syndrome of disordered thought, perception, and reality testing. In the ED, the priority is threef... ACEM Primary Written, ACEM Fellowshi

Psychiatric24 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Addisonian Crisis (Acute Adrenal Insufficiency)

Adrenal crisis presents with hypotension, hyponatraemia, hyperkalaemia, hypoglycaemia, and often hyperpigmentation (in p... ACEM Primary Written, ACEM Primary V

Other24 Jan 2026
Emergency Medicine
Endocrinology
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Advanced Life Support - Adult

Adult Advanced Life Support provides the framework for managing cardiac arrest beyond basic CPR and AED use. ALS incorpo... ACEM Primary Written, ACEM Primary V

Resuscitation23 Jan 2026
Emergency Medicine
Critical Care
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Airway Foreign Body - Adult

Foreign body airway obstruction is a preventable cause of asphyxial death, causing 60-100 deaths annually in Australia. ... ACEM Primary Written, ACEM Primary V

Resuscitation23 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Amphetamine Toxicity

Benzodiazepines are first-line for all amphetamine-induced agitation - titrate to effect, start high and go fast (IV ... ACEM Primary Written, ACEM Primary V

Toxicology23 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Anaphylaxis

Anaphylaxis is a rapid-onset, IgE or non-IgE mediated systemic allergic reaction affecting multiple organ systems. It af... ACEM Primary Written, ACEM Primary V

Resuscitation24 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Aortic Dissection

Aortic dissection occurs when an intimal tear allows blood to enter the medial layer of the aorta, creating a false lume... ACEM Primary Written, ACEM Primary V

Resuscitation24 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Asthma - Adult

Acute asthma exacerbations result from acute bronchospasm, airway inflammation, and increased mucus production causing r... ACEM Primary Written, ACEM Primary V

Respiratory Emergencies23 Jan 2026
Emergency Medicine
Respiratory Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Asthma - Paediatric

Acute paediatric asthma is a reversible obstructive airway disease characterised by bronchospasm, airway inflammation, a... ACEM Primary Written, ACEM Primary V

Paediatrics23 Jan 2026
Emergency Medicine
Paediatrics
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Asystole and Pulseless Cardiac Arrest

Asystole is complete absence of cardiac electrical activity (flat line ECG) with below 2% survival, while PEA (Pulseless... ACEM Fellowship Written, ACEM Fellow

Resuscitation24 Jan 2026
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
Emergency
AI-generated

Atrial Fibrillation - Acute Management

Acute AF in the ED demands rapid evaluation for instability (immediate cardioversion), determination of onset timing (48... ACEM Primary Written, ACEM Fellowshi

Cardiovascular24 Jan 2026
Emergency Medicine
Cardiology
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Awake Intubation

Awake intubation maintains spontaneous ventilation while establishing a definitive airway in patients with predicted dif... ACEM Primary Written, ACEM Primary V

Airway Management
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Bacterial Meningitis - Adult

Bacterial meningitis is a life-threatening infection of the meninges requiring immediate empirical antibiotics (Ceftriax... ACEM Fellowship Written, ACEM Fellow

Infectious23 Jan 2026
Emergency Medicine
Infectious Diseases
High evidence
ACEM Fellowship Written
+1
Open atlas page
ACEM
Emergency
AI-generated

Bacterial Meningitis - Paediatric

Never delay antibiotics for lumbar puncture - Draw blood cultures, give antibiotics, then perform LP if safe... ACEM Primary Written, ACEM Primary Viva exam

Paediatric Infectious Emergencies
Emergency Medicine
Paediatrics
High evidence
ACEM Primary Written
+1
Open atlas page
ACEM
Emergency
AI-generated

Bag-Mask Ventilation

Bag-mask ventilation (BMV) provides manual positive pressure ventilation using a self-inflating bag, one-way valve, and ... ACEM Primary Written, ACEM Primary V

Airway Management23 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Benzodiazepine Overdose

Benzodiazepine overdose causes CNS depression ranging from mild sedation to coma, typically described as "coma with stab... ACEM Primary Written, ACEM Primary V

Toxicology
Emergency Medicine
Toxicology
High evidence
ACEM Primary Written
+1
Open atlas page
ACEM
Emergency
AI-generated

Blunt Chest Trauma

Blunt chest trauma accounts for 25-50% of all trauma deaths and is the second leading cause of mortality after head inju... ACEM Primary Written, ACEM Primary V

Trauma23 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Bradycardia and Cardiac Conduction Disorders

Symptomatic bradycardia (heart rate below 50 bpm) with hypotension, altered conscious level, or signs of shock is a medi... ACEM Fellowship Written, ACEM Fellow

Cardiovascular24 Jan 2025
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
AI-generated

Bradycardia in Adults

Bradycardia is defined as a heart rate below 60 beats per minute (bpm) on resting electrocardiogram. While bradycardia can be a normal physiological finding in well-conditioned athletes and during sleep, pathological...

Electrophysiology16 Jan 2026
Cardiology
Emergency Medicine
High evidence
+1
Open atlas page
ACEM
Emergency
AI-generated

Broad-Complex Tachycardia

Broad-complex tachycardia accounts for 20-30% of ED tachyarrhythmias. Approximately 80% are VT, rising to 95% in patient... ACEM Primary Written, ACEM Fellowshi

Resuscitation24 Jan 2026
Emergency Medicine
Cardiology
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Brown Snake Envenomation

Brown snakes (Pseudonaja species) are responsible for the majority of snakebite deaths in Australia. The venom contains ... ACEM Primary Written, ACEM Primary V

Toxicology23 Jan 2026
Emergency Medicine
Clinical Toxicology
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Burns - Adult

Burns are tissue injuries caused by thermal, chemical, electrical, or radiation sources. In Australia, burns affect 25-3... ACEM Primary Written, ACEM Primary V

Trauma23 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Burns - Emergency Assessment and Management

Burn Depth Classification: Superficial (epidermis, red, painful), Superficial Partial (blisters, moist, blanches, ver... ACEM Fellowship Written, ACEM Fellow

Trauma24 Jan 2025
Emergency Medicine
Trauma
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
Emergency
AI-generated

Cardiac Arrest - Adult

Cardiac arrest is the cessation of mechanical cardiac activity confirmed by the absence of a palpable central pulse, unr... ACEM Primary Written, ACEM Primary V

Resuscitation23 Jan 2026
Emergency Medicine
Critical Care
High evidence
ACEM Primary Written
+1
Open atlas page
ACEM
Emergency
AI-generated

Cardiac Tamponade

Cardiac tamponade occurs when pericardial fluid accumulates faster than the parietal pericardium can stretch, causing in... ACEM Primary Written, ACEM Primary V

Resuscitation24 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Cardiogenic Shock

Cardiogenic shock occurs when the heart fails to pump sufficient blood to meet metabolic demands, resulting in systemic ... ACEM Primary Written, ACEM Fellowshi

Resuscitation24 Jan 2026
Emergency Medicine
Cardiology
High evidence
ACEM Primary Written
+1
Open atlas page
ACEM
Emergency
AI-generated

Cervical Spine Trauma

NEXUS Criteria (PMID: 9971872): No midline tenderness, no focal deficit, normal alertness, no intoxication, no painfu... ACEM Primary Written, ACEM Primary V

Trauma
Emergency Medicine
Trauma Surgery
High evidence
ACEM Primary Written
+1
Open atlas page
ACEM
Emergency
AI-generated

Chemical Restraint and Acute Behavioural Disturbance

Acute behavioural disturbance (ABD) affects 5-10% of ED presentations and represents a medical emergency requiring rapid... ACEM Fellowship Written, ACEM Fellow

Psychiatric24 Jan 2026
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
Emergency
AI-generated

Chest Drain (Tube Thoracostomy) Insertion

Anatomical safety zone: 5th intercostal space, mid-axillary line (nipple line in males, inframammary fold in females)... ACEM Fellowship Written, ACEM Fellow

Procedures24 Jan 2025
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
Emergency
AI-generated

Cocaine Toxicity

Presynaptic Catecholamine Reuptake Inhibition: Blocks reuptake of noradrenaline, dopamine, and serotonin in synaptic ... ACEM Primary Written, ACEM Primary V

Toxicology
Emergency Medicine
Toxicology
High evidence
ACEM Primary Written
Open atlas page
ACEM
AI-generated

Community-Acquired Pneumonia - Adult

Community-acquired pneumonia (CAP) is an acute lower respiratory tract infection acquired outside hospital, presenting w... ACEM Fellowship Written, ACEM Fellow

Respiratory Emergency
Emergency Medicine
Respiratory Medicine
High evidence
ACEM Fellowship Written
+1
Open atlas page
ACEM
AI-generated

Croup (Laryngotracheobronchitis)

Answer: Croup is acute viral laryngotracheobronchitis causing subglottic airway oedema in children aged 6 months to 3 years. Classic triad: barking seal cough, inspiratory stridor, hoarseness. Severity assessed using...

Paediatric Emergency Medicine
Emergency Medicine
Paediatrics
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
Emergency
AI-generated

Crush Injury

Crush injury is defined as compression of extremities or other body parts for prolonged periods, leading to tissue ischa... ACEM Primary Written, ACEM Primary V

Trauma
Emergency Medicine
Trauma
High evidence
ACEM Primary Written
+1
Open atlas page
ACEM
Emergency
AI-generated

Damage Control Resuscitation

Damage Control Resuscitation (DCR) is a systematic approach to managing life-threatening hemorrhagic shock that prioriti... ACEM Fellowship Written, ACEM Fellow

Resuscitation
Emergency Medicine
Trauma Surgery
High evidence
ACEM Fellowship Written
+1
Open atlas page
ACEM
Emergency
AI-generated

Deliberate Self-Harm

Deliberate self-harm affects 200-250 per 100,000 Australians annually presenting to emergency departments. It encompasse... ACEM Primary Written, ACEM Primary V

Psychiatric24 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
AI-generated

Delirium in the Emergency Department

Delirium affects 10-25% of older ED patients and is a medical emergency with 10-26% in-hospital mortality and 25-33% mor... ACEM Primary Written, ACEM Fellowshi

Psychiatric24 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Diabetic Ketoacidosis (DKA)

Diabetic Ketoacidosis represents absolute or relative insulin deficiency combined with counter-regulatory hormone excess... ACEM Fellowship Written, ACEM Fellow

Endocrine24 Jan 2026
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
Emergency
AI-generated

Difficult Airway Management

The difficult airway occurs in 1-6% of emergency department intubations and carries mortality of 25-30% if mismanaged, p... ACEM Primary Written, ACEM Primary V

Resuscitation23 Jan 2026
Emergency Medicine
Anaesthetics
High evidence
ACEM Primary Written
+1
Open atlas page
ACEM
Emergency
AI-generated

Digoxin Toxicity

Digoxin toxicity occurs when serum levels exceed the therapeutic window (0.5-2.0 ng/mL), inhibiting myocardial Na+/K+ AT... ACEM Primary Written, ACEM Primary V

Toxicology23 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Domestic Violence and Abuse

Domestic and family violence (DFV) is a pervasive public health issue affecting 1 in 3 women and 1 in 4 men in their lif... ACEM Fellowship Written, ACEM Fellow

Clinical24 Jan 2025
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
Emergency
AI-generated

Drowning Resuscitation

Drowning is a respiratory impairment process caused by submersion/immersion in liquid, leading to hypoxia and potentiall... ACEM Primary Written, ACEM Primary V

Resuscitation
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
AI-generated

ECMO/ECPR

Extracorporeal Membrane Oxygenation (ECMO) is a modified heart-lung machine providing temporary cardiopulmonary support ... ACEM Fellowship Written, ACEM Fellow

Resuscitation
Emergency Medicine
Moderate evidence
ACEM Fellowship Written
Open atlas page
ACEM
Emergency
AI-generated

Ectopic Pregnancy

Ectopic pregnancy accounts for 1-2% of all pregnancies but remains a leading cause of maternal mortality in the first tr... ACEM Primary Written, ACEM Primary V

Obstetric24 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

eFAST Examination

eFAST (Extended Focused Assessment with Sonography for Trauma) is a rapid, bedside ultrasound examination to detect free... ACEM Fellowship Written, ACEM Fellow

Trauma Procedures24 Jan 2025
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
AI-generated

Electrical Cardioversion

ALWAYS press SYNC button before cardioversion - asynchronous shock in R-on-T can precipitate ventricular fibrillation... ACEM Fellowship Written, ACEM Fellow

Resuscitation Procedures24 Jan 2025
Emergency Medicine
Cardiology
High evidence
ACEM Fellowship Written
+1
Open atlas page
ACEM
Emergency
AI-generated

Electrolyte Emergencies

Electrolyte emergencies are critical disturbances in serum potassium, sodium, calcium, or magnesium that pose immediate ... ACEM Fellowship Written, ACEM Fellow

Endocrine24 Jan 2026
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
Emergency
AI-generated

Electrolyte Emergencies

Electrolyte emergencies are critical disturbances in serum sodium, potassium, calcium, or magnesium that pose immediate ... ACEM Primary Written, ACEM Primary V

Resuscitation24 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Emergency Delivery

Emergency delivery (precipitous birth) occurs in 1-3% of births and carries 2-5 times higher neonatal mortality than pla... ACEM Primary Written, ACEM Primary V

Obstetric24 Jan 2026
Emergency Medicine
Obstetrics
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Encephalitis

Empiric acyclovir (10 mg/kg IV q8h) must be started immediately upon suspected HSV encephalitis—do NOT wait for lumba... ACEM Fellowship Written, ACEM Fellow

Neurological24 Jan 2026
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
Emergency
AI-generated

Environmental Medicine - Australia

Australian environmental emergencies involve venomous snakes, spiders, and marine creatures unique to our region. Snake ... ACEM Fellowship Written, ACEM Fellow

Environmental & Toxicology24 Jan 2026
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
AI-generated

Ethanol Toxicity

Ethanol toxicity ranges from mild intoxication to life-threatening withdrawal, hypoglycaemia, and Wernicke encephalopath... ACEM Primary Written, ACEM Primary V

Clinical Toxicology
Emergency Medicine
Toxicology
High evidence
ACEM Primary Written
+1
Open atlas page
ACEM
AI-generated

Extubation Criteria

Extubation is the planned removal of an endotracheal tube after determining a patient can maintain adequate spontaneous ... ACEM Primary Written, ACEM Fellowshi

Airway Management23 Jan 2026
Emergency Medicine
Critical Care
High evidence
ACEM Primary Written
+1
Open atlas page
ACEM
Emergency
AI-generated

Failed Intubation Drill

Failed intubation occurs in 1-3% of emergency department intubations and can rapidly deteriorate to a CICO (Can't Intuba... ACEM Primary Written, ACEM Primary V

Resuscitation23 Jan 2026
Emergency Medicine
Anaesthetics
High evidence
ACEM Primary Written
+1
Open atlas page
ACEM
Emergency
AI-generated

Foreign Body Airway Obstruction - Paediatric

Immediate Action : If conscious with ineffective cough → Call for help, 5 back blows, 5 chest thrusts (infants: chest thrusts only, no abdominal thrusts). If unconscious → Start CPR, check mouth for visible object...

Paediatric Resuscitation
Emergency Medicine
Paediatrics
High evidence
ACEM Primary Written
+1
Open atlas page
ACEM
AI-generated

Foreign Body Nasal - Paediatric

Nasal foreign bodies are common paediatric emergencies, peaking at 2-5 years. Immediate airway assessment is critical, e... ACEM Fellowship Written, ACEM Fellow

Paediatric Emergencies
Emergency Medicine
Paediatrics
High evidence
ACEM Fellowship Written
+1
Open atlas page
ACEM
Emergency
AI-generated

Funnel-Web Spider Envenomation

Funnel-web spider envenomation is a life-threatening emergency caused by delta-hexatoxin (robustoxin) from the Sydney Fu... ACEM Primary Written, ACEM Primary V

Toxicology23 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Gamma-Hydroxybutyric Acid (GHB) Toxicity

GHB toxicity presents with rapid-onset CNS depression (GCS often 3), respiratory depression, bradycardia, hypothermia, a... ACEM Primary Written, ACEM Primary V

Toxicology
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Guillain-Barré Syndrome

GBS is the most common cause of acute flaccid paralysis worldwide, affecting 1-2 people per 100,000 annually. Up to 30% ... ACEM Fellowship Written, ACEM Fellow

Neurological24 Jan 2025
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
Emergency
AI-generated

Headache Red Flags

Headache is a common ED presentation (2-4% of all visits), but 1-4% harbour life-threatening pathology. The SNOOP mnemon... ACEM Fellowship Written, ACEM Fellow

Neurology24 Jan 2026
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
AI-generated

Health Advocacy in Emergency Medicine

One-liner : Health advocacy in emergency medicine is the systematic identification and mitigation of barriers to optimal patient care through individual, institutional, and systemic action.

24 Jan 2026
Emergency Medicine
High evidence
Open atlas page
ACEM
AI-generated

Heat Illness Prevention

Acclimatization reduces heat illness risk by 40-60% and requires 7-14 days of progressive heat exposure with earlier ... ACEM Fellowship Written, ACEM Fellow

Public Health24 Jan 2026
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
AI-generated

Hyperemesis Gravidarum

Affects 0.3-3% of pregnancies, peaks at 8-12 weeks gestation. Life-threatening complications include Wernicke encephalop... ACEM Fellowship Written, ACEM Fellow

Obstetric24 Jan 2026
Emergency Medicine
Obstetrics and Gynaecology
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
Emergency
AI-generated

Hyperosmolar Hyperglycaemic State (HHS)

Hyperosmolar Hyperglycaemic State (HHS, formerly HONK/HHNS) is the most lethal hyperglycaemic emergency with 15-20% mort... ACEM Fellowship Written, ACEM Fellow

Endocrine Emergencies24 Jan 2026
Emergency Medicine
Endocrinology
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
Emergency
AI-generated

Hypertensive Emergency

Hypertensive emergencies affect 1-2% of all hypertensive patients and carry 5-25% mortality depending on end-organ invol... ACEM Primary Written, ACEM Fellowshi

Cardiovascular24 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Hyperthermia Emergency (Heat Illness)

Heat stroke is defined by core temp greater than 40°C + CNS dysfunction - confusion, seizures, coma. Mortality 10-50%... ACEM Fellowship Written, ACEM Fellow

Environmental24 Jan 2026
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
AI-generated

Hypertrophic Pyloric Stenosis

Examination demonstrating 'olive' mass and gastric peristaltic waves... ACEM Fellowship Written, ACEM Fellowship OSCE exam preparation.

Paediatric Emergencies
Emergency Medicine
Paediatric Surgery
High evidence
ACEM Fellowship Written
+1
Open atlas page
ACEM
Emergency
AI-generated

Hypoglycaemia - Emergency Management

Hypoglycaemia is a medical emergency defined by the clinical triad of low blood glucose (below 4.0 mmol/L in ED context)... ACEM Primary Written, ACEM Primary V

Endocrine Emergencies24 Jan 2026
Emergency Medicine
Endocrinology
High evidence
ACEM Primary Written
Open atlas page
ACEM
Emergency
AI-generated

Hypothermia - Emergency Medicine

Accidental hypothermia is defined as an involuntary drop in core body temperature below 35°C (95°F). It ranges from mild... ACEM Fellowship Written, ACEM Fellow

Environmental24 Jan 2025
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
Emergency
AI-generated

Intracerebral Haemorrhage

Intracerebral haemorrhage (ICH) accounts for 10-15% of all strokes and has the highest mortality of stroke subtypes at 3... ACEM Fellowship Written, ACEM Fellow

Neurological24 Jan 2025
Emergency Medicine
High evidence
ACEM Fellowship Written
Open atlas page
ACEM
Emergency
AI-generated

Intraosseous (IO) Access

IO is second-line to IV (ANZCOR: IV preferred, IO if IV cannot be rapidly achieved within 2 attempts)... ACEM Primary Written, ACEM Primary Viva exam prepara

Vascular Access24 Jan 2026
Emergency Medicine
High evidence
ACEM Primary Written
Open atlas page