A physician orders digoxin (Lanoxin) for a client with heart failure. During digoxin therapy, which laboratory value may predispose the client to digoxin toxicity?

A physician orders digoxin (Lanoxin) for a client with heart failure. During digoxin therapy, which laboratory value may predispose the client to digoxin toxicity?

A physician orders digoxin (Lanoxin) for a client with heart failure. During digoxin therapy, which laboratory value may predispose the client to digoxin toxicity?


a) Sodium level of 152 mEq/L

b) Magnesium level of 2.5 mg/dl

c) Potassium level of 2.8 mEq/L

d) Calcium level of 7.5 mg/dl



Answer: Potassium level of 2.8 mEq/L