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Life-threatening hyperkalemia — RCPSC IM MCQ

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EasyNephrologyLife-threatening hyperkalemiaRCPSC IM

A 70-year-old man with CKD and heart failure presents with weakness. Potassium is 7.1 mmol/L, creatinine is 268 micromol/L and ECG shows peaked T waves with QRS widening. He takes ramipril and spironolactone. What is the most appropriate management?

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Correct answer: CIntravenous calcium gluconate immediately, followed by potassium-shifting and potassium-removal therapy

ECG changes with severe hyperkalemia require immediate myocardial membrane stabilisation with intravenous calcium, then intracellular shift and definitive potassium removal.

Reference: Canadian nephrology emergency practice resources