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Doctor insights on: Prothrombin Time Inr Calculation

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My prothrombin time INR is 1.5 is it dangerous?

My prothrombin time INR is 1.5 is it dangerous?

Why is it 1.5?: You probably mean inr of 1.5 (normal prothrombin time is about 12 seconds). It is not dangerous by itself but why is your inr prolonged? The disease process causing this prolongation may be dangerous, e.G, liver disease, malabsorption causing vitamin deficiency etc. Please consult your doctor to determine the cause and treat the underlying process. ...Read more

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Dr. Afshine Emrani
261 doctors shared insights

Inr (Definition)

Could mean interventional neuro radiology which is minimally invasive field, or international normalized ration which is a lab ...Read more


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B12 inj(500mcg) for a week, does it increase clotting time,bleeding time?does it affect prothrombin time & INR? what supplements needed on B12 therapy

B12 inj(500mcg) for a week, does it increase clotting time,bleeding time?does it affect prothrombin time & INR? what supplements needed on B12 therapy

B12: B12 itself will not influence clotting or bleeding. However, as anemia corrects, blood clotting improves. Platelet count can raise as B12 improves marrow. Take folic acid, other B vitamins, and get potassium from food. ...Read more

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My prothrombin time is 14.3 & inr is 1.32 . I am on acitrom 3 & acitrom 4 on alternate days... is it ok?

My prothrombin time is 14.3 & inr is 1.32 . I am on acitrom 3 & acitrom 4 on alternate days... is it ok?

Anticoagulation: Your INR appears subtherapeutic and you will need an adjustment in your anti vitamin K meds. Please call your prescriber and ask about recommendations regarding your doses. ...Read more

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Prothrombin time - 15.8 sec and INR - 1.2 what could be the reason for increase? and i am on B12 inj now for a week, does it affect them.hvy periods

Prothrombin time - 15.8 sec and INR - 1.2 what could be the reason for increase? and i am on B12 inj now for a week, does it affect them.hvy periods

See below: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Having said that, your prolonged PT is not likely to be the cause of heavy periods.There is no relation between B12 and prolonged PT either. Given the health issues you have, it is something best discussed with your doctor who has more information. ...Read more

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My prothrombin time is INR 1.3 with normal aptt and platelet counts. Do I have liver failure? Normal ast, alt, alp and bilirubin. Burns right stomach

My prothrombin time is INR 1.3 with normal aptt and platelet counts. Do I have liver failure? Normal ast, alt, alp and bilirubin. Burns right stomach

Probably not: The slight elevation in the inr with normal labs for the rest of your liver functions suggests you don't have liver disease. The burning could be coming from an ulcer, or gastritis, or esophagitis. The body doesn't do a good job of localizing pain coming from the internal organs, so where you feel the pain may not be where it is.. Follow up with your doctor to check out different causes. ...Read more

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What is the definition or description of: prothrombin time?

What is the definition or description of: prothrombin time?

PTT: Prothrombin time provides information regarding the extrinsic pathway involved in clot formation. It's commonly used to monitor warfarin therapy. ...Read more

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High prothrombin time levels affect bleeding?

High prothrombin time levels affect bleeding?

Yes.: Prothrombin times about three times higher than normal for the particular lab may be a risk for abnormal bleeding. ...Read more

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What is the prothrombin time in a blood test?

What is the prothrombin time in a blood test?

Measures clot factor: This is a test that measures clotting factor activity. All these factors are synthesized in the liver, except factor viii, so this is also a check on the capability of the liver as well. If this is high, it can be from a deficiency or incabability of the factors or a liver failure issue, like cirrhosis, or a vitamin k deficiency from fat malabsorption. This shoud be worked-up dr.'s office. ...Read more

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What does it mean if my prothrombin time blood test is high?

What does it mean if my prothrombin time blood test is high?

Blood clotting : Defective. Prolonged prothrombin time can be due to deficiency of a number of coagulation factors. A common cause it treatment with warfarin/coumdain. Liver disease is an other common reason for prolonged pt. Depending on the prolongation, the person may be at risk of bleeding. ...Read more

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Why is prothrombin time prolonged in eosinophilic gastroenteropathy?

Why is prothrombin time  prolonged in eosinophilic gastroenteropathy?

Likely vitamin K: Deficiency. An intestinal lesion is likely to be associated with malabsorption may result in deficiency of vitamin k among other nutrients and prolong prothrombin time. However, this is a long shot explanation and you should be investigated to exclude other causes. ...Read more

Dr. Shimae Fitzgibbons
209 doctors shared insights

Prothrombin Time (Definition)

Prothrombin time provides information regarding the extrinsic pathway involved in clot formation. It's commonly used ...Read more