au-acem MCQ (SBA): Hyperkalaemia with ECG changes

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MediumNephrologyHyperkalaemia with ECG changesau-acemau-amcau-racp

A 63-year-old man with chronic kidney disease presents with a serum potassium of 6.8 mmol/L. His ECG shows tall peaked T waves and widening of the QRS complex. What is the single most urgent initial treatment?

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