A 60-year-old man has potassium of 7.2 mEq/L with peaked T waves. What is the first drug to give?

Answer and explanation

Correct answer: B. Intravenous calcium gluconate

  1. Step 1: Calcium stabilises the cardiac membrane and is given first, before shifting potassium with insulin and glucose. Answer: Intravenous calcium gluconate. Why not the others: Intravenous furosemide, Oral polystyrene sulfonate and Intravenous sodium bicarbonate don't fit.

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