Which laboratory test should the nurse monitor?

Posted by: Pdfprep Category: NCLEX-RN Tags: , ,

A client is being treated for congestive heart failure. His medical regimen consists of digoxin (Lanoxin) 0.25 mg po daily and furosemide 20 mg po bid.

Which laboratory test should the nurse monitor?
A . Intake and output
B . Calcium
C . Potassium
D . Magnesium

Answer: C

Explanation:

(A) Intake and output are not laboratory tests.

(B) Serum calcium levels are not affected by digoxin or furosemide.

(C) Furosemide is a nonCpotassium-sparing loop diuretic. Hypokalemia is a common side effect of furosemide and may enhance digoxin toxicity.

(D) Serum magnesium levels are not affected by digoxin or furosemide.

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