A child with heart failure is on Lanoxin (digoxin).The laboratory value a nurse must closely monitor is which?
A) Serum sodium
B) Serum potassium
C) Serum glucose
D) Serum chloride

Question

Quizplus · Accepted Answer

A fall in the serum potassium level enhances the effects of digoxin,increasing the risk of digoxin toxicity.Increased serum potassium levels diminish digoxin's effect.Therefore,serum potassium levels (normal range,3.5-5.5 mmol/L)must be carefully monitored.

A Child with Heart Failure Is on Lanoxin (Digoxin)