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High-altitude cerebral oedema — RCPSC EM MCQ

Instant feedback + full explanation. One question, done properly.

HardEnvironmental emergenciesHigh-altitude cerebral oedemaRCPSC EM

At 3,500 m, a climber develops headache, ataxia and confusion despite rest. SpO2 is 78% and evacuation can begin within 20 minutes. What is the priority management?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: B — Begin descent with oxygen and dexamethasone while evacuation proceeds

Explanation lettering: D = shown as A · E = shown as C · A = shown as D · C = shown as E

B is correct for high-altitude cerebral edema. C and D do not provide the required immediate descent. E delays treatment for a presentation that needs evacuation. A does not treat cerebral edema and may worsen volume depletion.

Reference: Emergency Care BC, Acute Mountain Sickness—Treatment: https://emergencycarebc.ca/clinical_resource/clinical-summary/acute-mountain-sickness-treatment/