EM SAQs · Disaster and mass casualty
Mass casualty bus crash — START triage, incident command and population ethics
ACEM-style SAQ on MCI triage (START/SALT), ICS, and greatest-good ethics.
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Triage framework (5 marks). I activate the hospital disaster plan and establish perimeter triage. I use START (Simple Triage and Rapid Treatment) or preferably SALT (Sort, Assess, Lifesaving interventions, Treatment/Transport) as the national-style mass-casualty system. Categories are Immediate (red) — life-threatening but salvageable with rapid intervention; Delayed (yellow) — serious injuries that can wait hours; Minimal (green) — walking wounded; Expectant (grey/black) — unsurvivable given current resources. START decisions use respirations, perfusion (radial pulse/cap refill) and mental status in under 60 seconds per patient. I retriage continuously as resources change. I remember the first patients through the door are often the least injured; the critically injured arrive later by ambulance.[1][2]
Incident command (5 marks). I implement the Incident Command System. The Incident Commander coordinates and does not treat patients — a commander who treats loses the overview. Operations manages clinical streams; planning tracks capacity; logistics supplies; finance/admin tracks costs and documentation. I freeze elective work, open overflow, notify ICU/theatre/blood bank, and control media and family flows. If CBRNE is possible I lock down and decontaminate before ED entry.[3]
Ethical shift (5 marks). Care shifts from the individual best interest to the greatest good for the greatest number (population / crisis standards of care). Expectant categorisation is explicit, documented and reversible if resources improve. Resource-intensive interventions of marginal benefit are deferred so more salvageable lives can be saved. Communication with staff and public must be honest about the temporary standard.[3]
References3ShowHide
- [1]Lerner EB, Schwartz RB, Coule PL, et al. Mass casualty triage: an evaluation of the data and development of a proposed national guideline. Disaster Med Public Health Prep, 2008.PMID 18769263
- [2]Lerner EB, Schwartz RB, Coule PL, et al. Use of SALT triage in a simulated mass-casualty incident. Prehosp Emerg Care, 2010.PMID 19947863
- [3]Sarin RR, et al. Core Disaster Medicine Education (CDME) for Emergency Medicine Residents in the United States. Prehosp Disaster Med, 2019.PMID 31455462