Emergency Medicine: Stabilize, Then Diagnose
Emergency medicine items are about sequencing under uncertainty. The correct answer is usually the action that addresses the greatest immediate threat.
Core content
Master the ABCDE approach and the recognition of shock states - hypovolemic, distributive, cardiogenic, and obstructive. Learn the lethal arrhythmias and their management, acute coronary syndromes, stroke thrombolysis windows, anaphylaxis, status epilepticus, and toxicology antidotes. Understand airway decision-making and when to use rapid sequence intubation. Know triage principles and the difference between stabilization and definitive care.
Traps
- Anaphylaxis: epinephrine is first-line, given intramuscularly; antihistamines and steroids are adjuncts.
- Stroke: time is brain; confirm the window and exclude hemorrhage before thrombolysis.
- Sepsis: fluids and antibiotics early; do not wait for cultures to return.
- Toxicology: know antidotes - naloxone, N-acetylcysteine, flumazenil caution, and sodium bicarbonate for tricyclic toxicity.
- Distractors: a correct diagnosis with a wrong immediate action is a common wrong answer.
Rule of thumb
If a stem presents an unstable patient, choose the intervention that restores airway, breathing, or circulation before any diagnostic study. If the patient is stable, choose the test that most changes management.
Worked example
A patient with urticaria, wheeze, and hypotension after an antibiotic needs intramuscular epinephrine immediately, along with airway assessment and fluids. Antihistamines are given later and do not replace epinephrine.