A nurse is providing teaching to a client who has a new prescription for warfarin. Which of the following information should the nurse include in the teaching?

Rationale: A. "Use an electric razor when shaving while taking this medication.": Warfarin is an anticoagulant that increases the risk of bleeding. Using an electric razor reduces the risk of cuts and subsequent bleeding, which is an important safety measure for clients on warfarin therapy. B. "Take a dose of the medication every 5 minutes for a maximum of three doses": This instruction is inappropriate and unrelated to warfarin. Warfarin is taken orally once daily, and frequent dosing in short intervals could lead to serious bleeding complications. C. "Avoid taking this medication with milk products.": Milk does not significantly affect warfarin absorption or activity. The client should be cautioned about foods high in vitamin K, such as leafy greens, because they can interfere with warfarin’s anticoagulant effect. D. "This medication can cause hearing loss.": Hearing loss is not a known adverse effect of warfarin. The primary concerns are bleeding risks, bruising, and interactions with other medications or foods.