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Severe accidental hypothermia — RCPSC EM MCQ

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HardEnvironmental emergenciesSevere accidental hypothermiaRCPSC EM

CTAS 1. A 58-year-old is found outdoors in January. Core temperature is 27°C, BP 72/40, HR 32, and ECG shows Osborn waves. He is confused but has a pulse. Potassium is 4.8 mmol/L. What is the most appropriate next step?

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Correct answer: B — Gentle handling and active internal rewarming pathway

Severe hypothermia with instability requires gentle handling, warmed resuscitation, and active internal or extracorporeal rewarming pathway when available.

Reference: Wilderness Medical Society hypothermia guideline; Canadian wilderness medicine resources