Severe hyperkalaemia with ECG changes — RCPSC EM MCQ
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Correct answer: E — Give IV calcium, then insulin-dextrose and potassium removal therapy
Hyperkalaemia with life-threatening ECG changes requires immediate myocardial membrane stabilisation with IV calcium, then intracellular shift and definitive potassium removal.
Reference: ACLS/ATLS/PALS principles adapted to Canadian ED practice