[Answer] A patient with acute renal failure experiences cardiac arrest. Just before the cardiac arrest the patient’s ECG showed peaked T waves. What might be causing the patient’s cardiac arrest?

Answer: Suspect hyperkalemia in all patients with acute or chronic renal failure who exhibit a wide-complex ventricular rhythm or tall peaked T waves on an ECG before cardiac arrest.
A patient with acute renal failure experiences cardiac arrest. Just before the cardiac arrest t…

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