An older patient is currently taking furosemide and digoxin. Which laboratory value should be of concern to the nurse?
A) Digoxin level 1.0 mg/mL
B) Sodium level 140 mEq/L
C) Potassium level 2.5 mEq/L
D) Potassium level 4.0 mEq/L

Question

Quizplus · Accepted Answer

The correct answer is C) Potassium level 2.5 mEq/L. This is because both furosemide (a loop diuretic) and digoxin can lead to hypokalemia (low potassium levels). A potassium level of 2.5 mEq/L is significantly lower than the normal range (approximately 3.5 to 5.0 mEq/L), which can increase the risk of digoxin toxicity and cardiac arrhythmias.

An Older Patient Is Currently Taking Furosemide and Digoxin