Increasing Vitamin K intake in a patient on warfarin affects INR how?

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Multiple Choice

Increasing Vitamin K intake in a patient on warfarin affects INR how?

Explanation:
Increasing vitamin K intake provides more substrate for the liver to make the vitamin K–dependent clotting factors (II, VII, IX, X). Warfarin works by blocking this activation, so adding more vitamin K counters that effect and reduces the anticoagulated state. The result is a lower INR, meaning blood clotting ability moves closer to normal. In practice, consistent vitamin K intake is important because abrupt changes can alter INR and require dose adjustments.

Increasing vitamin K intake provides more substrate for the liver to make the vitamin K–dependent clotting factors (II, VII, IX, X). Warfarin works by blocking this activation, so adding more vitamin K counters that effect and reduces the anticoagulated state. The result is a lower INR, meaning blood clotting ability moves closer to normal. In practice, consistent vitamin K intake is important because abrupt changes can alter INR and require dose adjustments.

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