Question

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

1) Magnesium level of 2.5 mg/dl
2) Potassium level of 2.8 mEq/L
3) Calcium level of 7.5 mg/dl
4) Sodium level of 152 mEq/L

Answer 1

Low potassium levels may predispose a client to digoxin toxicity during digoxin therapy.

Step-by-step explanation:

Digoxin is a medication commonly used to treat heart failure. One laboratory value that may predispose a client to digoxin toxicity is a low potassium level (option 2).

Low potassium levels, also known as hypokalemia, can increase the risk of digoxin toxicity. It can lead to arrhythmias and affect the function of the heart. It is important to monitor potassium levels while on digoxin therapy to avoid complications.