What is a normal INR range?

A normal INR range is 0.8 to 1.1 if you’re not taking anticoagulant medications. If you’re taking these medications, your target INR range may be between 2 and 3.5. If your INR is too high, you’re at increased risk of bleeding. If you develop bleeding while your INR is too high, it can be life-threatening.

What happens if my INR is too high?

If your INR is too high, you’re at increased risk of bleeding. If you develop bleeding while your INR is too high, it can be life-threatening. Fortunately, there are medications that can reverse warfarin to help stop the bleeding. Warfarin (Coumadin) is a common medication that people take to prevent their blood from clotting.

Does warfarin cause high INR?

Diet: Many foods can affect your INR level. Most of the time this is related to how much vitamin K is in your diet. Warfarin works by blocking the effect of vitamin K. So, if you decrease the amount of vitamin K in your diet, this could lead to a high INR.