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Calcium channel blocker overdose — RCPSC EM MCQ

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HardToxicologyCalcium channel blocker overdoseRCPSC EM

A patient with aneurysmal SAH is awake, BP 202/108 mmHg and has no hydrocephalus. Neurosurgery is arranging aneurysm securing. Which early medical plan is most appropriate?

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

Reveal the answer and explanation

Correct answer: BControl BP and start nimodipine while expediting definitive aneurysm treatment

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

B is correct: early care balances rebleeding against cerebral perfusion, starts nimodipine and expedites aneurysm treatment. C increases rebleeding risk. D promotes hemorrhage. E misses prophylactic nimodipine benefit. A risks hyponatremia and cerebral edema.

Reference: Emergency Care BC, Subarachnoid Hemorrhage—Treatment: https://emergencycarebc.ca/clinical_resource/clinical-summary/subarachnoid-hemorrhage-treatment/