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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Does 0.9 Level Of PT/INR Value Indicate?

Hi,
I had a PT/INR done on Friday and results came back with a 0.9 . I have been taking 7.5 mg of warfarin daily and my doctor advised me to double the dose and take another PT/INR on Wednesday.

What I want to know is what dangers do I need to be aware of with my levels being 0.9 ?
Fri, 2 Jan 2015
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Psychiatrist,  's  Response
hello,
PT/INT is prothrombin time international ratio that measures the coagulating capacity of the plasma. Conditions like warfarin doses, vitamin K deficiency, liver disease, etc raises PT INR value. It's normal value is 0.8-1.2, however with ongoing warfarin, a value of upto 2.5 is acceptable, rather maintaing high INR is our intention when on warfarin therapy.
The reason for which you have been on warfarin, is what I would need to know before making further comments.

hope to have satisfied your query.
Regards,
Dr Pankaj Borade
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What Does 0.9 Level Of PT/INR Value Indicate?

hello, PT/INT is prothrombin time international ratio that measures the coagulating capacity of the plasma. Conditions like warfarin doses, vitamin K deficiency, liver disease, etc raises PT INR value. It s normal value is 0.8-1.2, however with ongoing warfarin, a value of upto 2.5 is acceptable, rather maintaing high INR is our intention when on warfarin therapy. The reason for which you have been on warfarin, is what I would need to know before making further comments. hope to have satisfied your query. Regards, Dr Pankaj Borade