Difficulty: Medium
Average Score: 67%
Simulated
The nurse is teaching a client about taking prophylactic warfarin sodium (Coumadin). Which statement indicates that the client understands how to take the drug?
Correct answer
B,C,E
Rationale
Warfarin's maximum effect takes 3-4 days (B), its effects persist 4-5 days after stopping (C), and periodic blood tests (e.g., INR) are required (E). Peak action is not 2 hours, and protamine sulfate is the antidote for heparin, not warfarin.