What causes high Prothrombin time and low INR?
High Prothrombin time and low INR can be caused by many reasons.
If your Prothrombin time is in between 12 seconds and 16 seconds and your INR is in between 0.9 ratio and 1.2 ratio then you need not worry as these are the normal ranges for Prothrombin time and INR respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.
Normal range of Prothrombin time : 12 - 16 seconds
| Age | Ideal Prothrombin time value |
|---|---|
| <5 years | 12.129 |
| 5-10 years | 12.259 |
| 10-15 years | 12.391 |
| 15-20 years | 12.524 |
| 20-25 years | 12.659 |
| 25-30 years | 12.795 |
| 30-35 years | 12.932 |
| 35-40 years | 13.071 |
| 40-45 years | 13.211 |
| 45-50 years | 13.353 |
| 50-55 years | 13.496 |
| 55-60 years | 13.641 |
| 60-70 years | 13.788 |
| 70-80 years | 13.936 |
| 80-90 years | 14.086 |
| 90-100 years | 14.237 |
| >100 years | 14.39 |
If you want your blood test report to be interpreted by Prothrombin time specialist, then you can upload your report. Our Prothrombin time expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours. Upload blood test report now
Your Prothrombin time result may be wrong. Click to know the reason in detail
Click here to know Symptoms of High Prothrombin time
Click here to know Symptoms of Low INR
Besides Lab test failures, there are many other reasons for inaccurate blood results. Know the common reasons for inaccurate blood test results
Normal range of Prothrombin time found among women : - seconds
| Age | Ideal INR value |
|---|---|
| <5 years | 0.91 |
| 5-10 years | 0.92 |
| 10-15 years | 0.93 |
| 15-20 years | 0.94 |
| 20-25 years | 0.95 |
| 25-30 years | 0.96 |
| 30-35 years | 0.97 |
| 35-40 years | 0.98 |
| 40-45 years | 0.991 |
| 45-50 years | 1.002 |
| 50-55 years | 1.013 |
| 55-60 years | 1.024 |
| 60-70 years | 1.035 |
| 70-80 years | 1.046 |
| 80-90 years | 1.057 |
| 90-100 years | 1.068 |
| >100 years | 1.079 |
Click here to know Symptoms of High Prothrombin time
Click here to know Symptoms of Low INR
Click here to upload your blood test report
Click here to consult a doctor for your Low Prothrombin time problem
High Prothrombin time and low INR can be caused by a lot of reasons. If you take Prothrombin time and INR blood tests and the results are higher than 16 seconds for Prothrombin time and lower than 0.9 ratio for INR, your physician may recommend more tests to figure out the problem. You might also get these tests if your physician thinks you have some other disease.
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How the Prothrombin time and INR Tests Are Done :
If your doctor wants Prothrombin time and INR tests on you, you may need to go through these tests. During the Prothrombin time and INR blood tests, a pathologist will put a needle into your veins and take out a small quantity of blood. A pathologist is a physician in the medical field who thoroughly studies the causes and effects of disease. Within a few hours you will get your Prothrombin time and INR Test reports by your pathologist.
Click here to upload your blood test report
Click here to consult a doctor for your Low Prothrombin time problem
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