Question

The patient receives an appropriate dose of warfarin (Coumadin), but the international normalized ratio (INR) is in the high range. The patient denies taking any aspirin products. What is the best assessment question to ask the patient at this time?

1. "Have you been eating much garlic?"
2. "Have you been eating a lot of salads and vegetables?"
3. "Have you been drinking too much milk?"
4. "Are you restricting your fluids too much?"

Answer 1

The best assessment question to ask the patient is: 'Have you been eating a lot of salads and vegetables?' Warfarin effectiveness can be influenced by vitamin K-rich foods, and this question helps assess if the patient's diet is affecting their therapy.

Step-by-step explanation:

The best assessment question to ask the patient in this scenario is: Have you been eating a lot of salads and vegetables?

Warfarin is an anticoagulant medication that works by slowing down the clotting process. It is possible that a high intake of foods rich in vitamin K, such as salads and vegetables, can interfere with the effectiveness of warfarin and cause the INR to be in the high range.

By asking the patient about their diet, the healthcare provider can assess if their vitamin K intake might be affecting the warfarin therapy. Adjustments to the diet or medication dosage can be made accordingly.