HESI RN Exit Exam 2023 Capstone Related

Review HESI RN Exit Exam 2023 Capstone related questions and content

Which medication should the nurse withhold if the client's serum potassium level is 6.2 mEq/L?

  • A. Losartan
  • B. Spironolactone
  • C. Metoprolol
  • D. Furosemide
Correct Answer: B

Rationale: The correct answer is B: Spironolactone. Spironolactone is a potassium-sparing diuretic that can lead to hyperkalemia. With potassium levels already elevated at 6.2 mEq/L, withholding Spironolactone is essential to prevent further increase in potassium levels, which could result in dangerous cardiac arrhythmias. Losartan (Choice A) is an angiotensin receptor blocker and does not directly affect potassium levels. Metoprolol (Choice C) is a beta-blocker and also does not impact potassium levels significantly. Furosemide (Choice D) is a loop diuretic that can actually lower potassium levels, so it would not be the medication to withhold in this case.