Arab Board Internal Medicine Clinical Exam

Practice session

A 66-year-old man with end-stage renal disease misses two hemodialysis sessions. He presents with severe generalized muscle weakness. His 12-lead ECG demonstrates tall, peaked, narrow-based T waves, flattened P waves, PR prolongation, and widening of the QRS complex. Serum potassium returns at 7.4 mmol/L. What is the immediate first-line intravenous drug to administer?

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