NCLEX-RN

Category - Pharmacological

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?
  1. Sweet potatoes
  2. Spinach
  3. Chives
  4. Garlic
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.
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