NCLEX-RN (Registered Nurse) Practice Exam · Question
A patient with a history of heart failure is prescribed a loop diuretic. Which electrolyte imbalance is the nurse most concerned about?
Loop diuretics often lead to potassium excretion, increasing the risk of hypokalemia, which can cause cardiac dysrhythmias.
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Question: A patient with a history of heart failure is prescribed a loop diuretic. Which electrolyte imbalance is the nurse most concerned about?
Answer options:
- Hypernatremia
- Hyperkalemia
- Hypocalcemia ✅ Hypokalemia
Correct answer: Hypokalemia
Explanation: Loop diuretics often lead to potassium excretion, increasing the risk of hypokalemia, which can cause cardiac dysrhythmias.
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