Cardiac Disorders NCLEX Questions Nursing Practice Question
A prothrombin time test should be performed regularly on persons who are taking which medication?
Correct Answer: B
Rationale: A prothrombin time test is done to determine the effectiveness of warfarin. A partial thromboplastin time test is used for heparin. Phenobarbital and digoxin do not require regular clotting tests, though serum levels may be monitored for long-term therapy.