Warfarin - Explain PT/INR scale?

Answers (1)

24 Mar 2012

PT means prothrombin time, or "pro-time", is one of the blood tests done to see how fast your blood clots. Prothrombin is a protein produced by the liver that helps blood clot. If you are taking blood thinners, it is done to see how your medicine is working. INR, means international normalized ratio, is used to monitor the effectiveness of anticoagulants such as warfarin. The test result for PT depends on the method used, with results measured in seconds and compared to the average value in healthy people. Most laboratories report PT results that have been adjusted to the International Normalized Ratio (INR) for patients on anticoagulant drugs. These patients should have an INR of 2.0 to 3.0 for basic "blood-thinning" needs. For some patients who have a high risk of clot formation, the INR needs to be higher - about 2.5 to 3.5.

Expand...

Votes: +0

Further Information

Search for questions

Still looking for answers? Try searching for what you seek or ask your own question.

Similar questions

Warfarin - paper wasp sting treatment?

1 answer 17 Sep 2009

Prevention of Thromboembolism in Atrial Fibrillation - I have atrial fib and have been placed on?

... Betapace--the blue pill twice a day. Is this the correct medication or should it be Betapace AF? I'm confused and concerned

1 answer 22 Sep 2009

Prevention of Thromboembolism in Atrial Fibrillation - My father had several stroke 4 years ago and?

... has been on coumadin ever since. He gets headaches and has severe dizziness. He has decided he will no longer take this medication. Are there any ...

1 answer 6 Dec 2009

Could Pradaxa be the cause of my mothers strokes - she was recently changed from warfarin?

My 84 year old Mother had been on Warfarin for years then was placed on Pradaxa. Five weeks latter she had two strokes in two days and now is in ...

3 answers 22 Aug 2011

How do I find a safe antidepressant to take with warfarin and metoprol?

I am now taking celexa with warfarin and metoprol . my celexa is not working very well so I need a change. what antidepressant would be a good try?

3 answers 5 Dec 2013