RNPedia PNLE Nursing Practice 3 Test 1 Practice

A patient on an anticoagulant should be advised to avoid which type of food?

Report diarrhea Foods high in vitamin K Use a straight razor Take aspirin for pain

Correct Answer:

Foods high in vitamin K

Explanation:

The main idea is that vitamin K intake can alter how an anticoagulant works. Warfarin, a common anticoagulant, suppresses the vitamin K–dependent production of clotting factors. If a person eats a lot of foods rich in vitamin K, it can replenish vitamin K and counteract the drug, reducing its effect and increasing the risk of clotting. So, foods high in vitamin K should be limited in terms of avoiding large, sudden increases, and patients are advised to keep a consistent level of vitamin K in their diet. Examples include leafy greens like spinach, kale, and broccoli. The goal isn’t to eliminate vitamin K, but to avoid big fluctuations and to discuss any dietary changes with a clinician. The other options aren’t foods that interact with the anticoagulant in this way.

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