ATI Medical Surgical Proctored Exam 2019 Quizlet Related

Review ATI Medical Surgical Proctored Exam 2019 Quizlet related questions and content

The client with a history of heart failure is taking furosemide (Lasix). Which laboratory result should the nurse monitor closely?

  • A. Serum sodium.
  • B. Serum potassium.
  • C. Serum calcium.
  • D. Serum magnesium.
Correct Answer: B

Rationale: The correct answer is B: Serum potassium. Furosemide is a loop diuretic that can cause potassium loss, leading to hypokalemia. Hypokalemia can exacerbate cardiac arrhythmias in patients with heart failure. Monitoring serum potassium levels is crucial to prevent complications.

Incorrect choices:
A: Serum sodium - Furosemide may cause hyponatremia, but it is less critical compared to hypokalemia in a client with heart failure.
C: Serum calcium - Furosemide does not directly affect calcium levels significantly in most cases.
D: Serum magnesium - While furosemide can cause hypomagnesemia, monitoring potassium is more essential in this scenario due to its impact on cardiac function.