A client has been prescribed warfarin sodium (Coumadin). On discharge teaching, a nurse reminds the client to limit her intake of which food item while taking the medication?
Explanation
Answer: B - Warfarin, an anticoagulant, prevents blood clotting by antagonizing the action of vitamin K. Foods rich in vitamin K must, therefore, be regulated during therapy. Vitamin K is found in dark green leafy vegetables, such as spinach, kale, and turnips. While these nutritious foods need not be avoided altogether, they should be limited.