The nurse is caring for a client admitted with hypokalemia who is on multiple medications. The nurse determines that which of the following medications that the client was prescribed might have contributed to this problem?
1. Thiazide diuretic
2. Narcotic
3. Corticosteroid
4. Muscle relaxer
3: Corticosteroid
Rationale:
Excess potassium loss through the kidneys is often caused by such medications as corticosteroids, potassium-wasting (loop) diuretics, amphotericin B, and large doses of some antibiotics. Neither a thiazide diuretic, narcotic, nor muscle relaxer would bring about potassium loss to cause hypokalemia.
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