In reviewing a patient's laboratory results before administering digoxin, which laboratory result places the patient at greatest risk for digoxin toxicity?

Question

Quizplus · Accepted Answer

Low serum potassium levels (hypokalemia) increase the risk for digoxin toxicity because digoxin and potassium compete for the same binding sites on the Na+/K+ ATPase pump. When potassium levels are low, digoxin is more likely to bind to these sites, leading to an increased risk of toxicity.

In Reviewing a Patient's Laboratory Results Before Administering Digoxin, Which