Difficulty: Medium
Average Score: 75%
Simulated
A nurse is caring for a client who has a prescription for warfarin. Which of the following laboratory tests should the nurse monitor?
Correct answer
D
Rationale
Warfarin affects clotting via vitamin K, so prothrombin time (PT) monitors its efficacy and safety. Other tests assess thyroid, kidney, or respiratory function, not anticoagulation.