Free NCLEX-PN Practice Questions Practice Question
The nurse is caring for a client with a history of atrial fibrillation who is prescribed warfarin (Coumadin). Which of the following instructions should the nurse include in the client's teaching?
Correct Answer: A
Rationale: Warfarin's effect is influenced by vitamin K in green leafy vegetables, so consistent intake maintains stable INR levels. Activity (B) is encouraged, timing (C) is flexible, and stopping for bruising (D) requires physician consultation.
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