When a client who has been taking warfarin (Coumadin) for 2 years tells the nurse of plans for oral surgery, the nurse would caution the client to
a. avoid taking aspirin for postoperative pain.
b. contact the physician to arrange vitamin K injections before surgery.
c. obtain an International Normalized Ratio (INR) 1 day before surgery.
d. stop taking Coumadin for 3 or 4 days before surgery.
D
Warfarin has a long half-life of 3 to 4 days. Before surgery the client should cease taking Cou-madin for that period.
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