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Your Blood-thinning level (INR) is in the normal range, which means your blood is clotting at the right speed — not too fast, not too slow.
Your Blood-thinning level (INR) is unusually low, meaning your blood is clotting much faster than normal. This can happen with excessive vitamin K or certain clotting disorders. It raises the risk of dangerous blood clots forming in veins or arteries.
This needs medical attention. If you're on blood thinners, your dose may need adjusting.
PT/INR: {{value}} {{unit}} — critically low (ref: {{low}}–{{high}})Your clotting speed is faster than average, which is usually not a problem in healthy people. But if you're on warfarin or other blood thinners, this means the medication isn't working as effectively as intended.
If you're not on anticoagulants, this is unlikely to be concerning. If you are, talk to your prescribing doctor.
PT/INR: {{value}} {{unit}} — below reference range (ref: {{low}}–{{high}})Your Blood-thinning level (INR) is just below the normal range. In most people this is not clinically significant, but it's worth noting if you have a history of blood clots or are on blood-thinning treatment therapy.
Mention to your doctor at your next visit, especially if you're taking any blood-related medications.
PT/INR: {{value}} {{unit}} — borderline lowYour Blood-thinning level (INR) is in the normal range, which means your blood is clotting at the right speed — not too fast, not too slow.
No action needed. Your clotting function is working as expected.
PT/INR: {{value}} {{unit}} — within reference rangeYour Blood-thinning level (INR) is right in the middle of the normal range. Your clotting factors are working in harmony to stop bleeding when needed without forming unnecessary clots.
Great result. Continue your current lifestyle and medication routine.
PT/INR: {{value}} {{unit}} — optimalYour Blood-thinning level (INR) is slightly above normal, meaning your blood clots a little more slowly. This could reflect vitamin K deficiency, a mild liver issue, or the expected effect of blood-thinning medications.
If you're on warfarin, your dose may need slight adjustment. If you're not on any blood thinners, let your doctor know.
PT/INR: {{value}} {{unit}} — borderline elevatedA high Blood-thinning level (INR) means your blood takes significantly longer to clot than normal. This raises your risk of prolonged bleeding from cuts or internal bleeding. Causes include warfarin therapy, vitamin K deficiency, or liver disease affecting clotting factor production.
Discuss with your doctor promptly. If you're on warfarin, your dose needs adjustment. Avoid activities with high injury risk until this is addressed.
PT/INR: {{value}} {{unit}} — elevated (ref: {{low}}–{{high}})Your Blood-thinning level (INR) is very high. Even a minor cut or bruise could lead to noticeable bleeding that's difficult to stop. Your blood is almost unable to form proper clots. This is a medical emergency.
Go to the emergency room immediately or call your blood-thinning treatment clinic. Do not delay.
PT/INR: {{value}} {{unit}} — critically elevated (ref: {{low}}–{{high}})Upload your lab report and get your actual values interpreted in plain English — instantly, with no medical training required.