Emergency Medicine: Structured Assessment, Resuscitation Priorities and Safe Disposition
The discipline of the first ten minutes
Emergency medicine questions reward a reproducible approach more than recall of rare syndromes. Anchor every stem with a primary survey: catastrophic haemorrhage control, airway patency and protection, breathing and ventilation, circulation with perfusion endpoints, disability including glucose and pupils, and exposure with temperature. Ask what is immediately life-threatening before asking what the diagnosis is. The commonest trap is premature pattern recognition: a stem describing a young adult with breathlessness invites asthma, but a silent chest, exhaustion, or rising carbon dioxide signals impending failure requiring senior help and ventilatory support rather than more nebulisers.
Resuscitation endpoints and reassessment
Understand that resuscitation is titrated to physiological targets, not to fixed volumes. Perfusion is judged by mentation, capillary refill, urine output, lactate clearance and blood pressure appropriate to the patient's baseline. Recognise that elderly patients and those on beta-blockers or with pacemakers may not mount tachycardia, and that pregnancy, athletes and young trauma patients compensate until sudden decompensation. Shock is a syndrome, not a number: classify by mechanism (hypovolaemic, distributive, cardiogenic, obstructive) because the immediate intervention differs fundamentally.
Disposition and risk
Disposition questions test whether you can identify the patient who looks well but is not. Consider the disease's temporal trajectory: conditions that evolve after a normal initial assessment include sepsis, mesenteric ischaemia, aortic dissection, ectopic pregnancy and cardiac ischaemia. Document a clear safety net, follow-up and observation plan.
Worked rule of thumb
For undifferentiated hypotension, apply the 'four P' scan: Pump (ECG, bedside echo, troponin), Pipes (volume status, bleeding sources), Pipes-in-the-lung (oxygenation, obstructive causes such as tension pneumothorax or tamponade), and Peripheral tone (sepsis, anaphylaxis, neurogenic). Treat the reversible cause found rather than escalating vasopressors blindly; a fluid bolus in cardiogenic or obstructive shock can be harmful. Reassess after every intervention and record the response.