A person is taking the oral anticoagulant medication warfarin. Which food should the nurse advise the person to be careful about consuming because it is a source rich in vitamin K?

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Cauliflower is a source rich in vitamin K. Since warfarin is a medication that works by reducing the clotting ability of blood, it is important to be careful with vitamin K intake because it can interfere with warfarin's effectiveness. Consuming large amounts of vitamin K can lower the effectiveness of warfarin, leading to a higher risk of blood clots. Therefore, it is important to advise the person to be careful about consuming cauliflower. Margarine, citrus fruits, and fish are not significant sources of vitamin K.

A Person Is Taking the Oral Anticoagulant Medication Warfarin