Warfarin inr normal range10/4/2023 Talk to your doctor before starting any new diet/nutrition regimens. Other changes to your nutrition, such as starting a new diet or taking new supplements, can also cause your INR level to fluctuate. Foods with high levels of vitamin K include kale, broccoli, and Brussels sprouts. Because warfarin works by blocking vitamin-K-dependent clotting factors, increasing your vitamin K intake can make warfarin less effective by lowering your INR level and potentially putting you at risk for a blood clot. You also need to make sure that your doctor always has an up-to-date list of all the medications you take since some medications may interact with warfarin.įinally, you’ll also need to watch your diet and keep track of foods that may have vitamin K in them. When filling your warfarin prescription, try to fill it at the same pharmacy to ensure the brand of warfarin you’re on stays consistent. If you miss any doses, you should contact your healthcare provider and ask about how to safely restart it. What can I do to help keep my INR level where it should be?įirst, always listen closely to your doctor’s instructions and take your medication exactly as prescribed. Learn more about home testing here or talk to your healthcare provider. After self-testing with this device, you can report your INR results to your care team to determine if you need to adjust your warfarin dose. Home testing requires the use of an in-home INR monitoring machine and test strips. INR tests can be done at a lab or clinic but can also be done at home for some patients. According to the American Heart Association (AHA), patients should be tested at least once a month, but some patients will require testing as often as twice a week. Testing needs depend on how stable a patient’s INR is over time. Patients with a tendency towards clotting may have a range targeting 3-4, whereas patients with a higher bleeding risk may have a lower INR between 2-2.5. If your INR is too low, you could be at risk for a blood clot – but if it’s too high, you could experience bleeding.Ī typical INR target ranges from 2-3 but can vary from patient to patient. The test measures how much time it takes for your blood to clot and will determine if you’re receiving the right dose of warfarin. INR stands for international normalized ratio and is measured with a blood test called PT-INR. To make sure that the medication is working effectively, patients on warfarin need routine blood tests to check a level called the INR. Warfarin is a medication that works by blocking the formation of vitamin-K-dependent clotting factors, which are substances in the blood that cause clotting.Īlthough warfarin can prevent blood clots from forming, it can also cause other problems like bleeding. If you have any questions or concerns, talk to your doctor or pharmacist.Īfter being diagnosed with a blood clot (thrombosis), your healthcare provider may prescribe warfarin for treatment.Be careful with foods that have a lot of vitamin K, like broccoli and kale, because they can change your INR level.Try to get your warfarin from the same pharmacy every time, and let your doctor know about any other medicines or supplements you take.Follow your doctor’s instructions and take your medicine as prescribed. ![]() You’ll need to have your INR checked often, either at a lab or clinic or at home.Your INR level should usually be between 2-3, but it can be different depending on your situation.This test checks how long it takes your blood to clot and helps your doctor know if you need a different dose of warfarin. You need to have a blood test called the international normalized ratio, or INR.Your doctor may give you a medication called warfarin which helps stop your blood from clotting, but it can also increase your risk of bleeding.
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