What causes high Prothrombin time and low RDW?

High Prothrombin time and low RDW can be caused by many reasons.

If your Prothrombin time is in between 12 seconds and 16 seconds and your RDW is in between 11.6 % and 14 % then you need not worry as these are the normal ranges for Prothrombin time and RDW 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

Ideal values of Prothrombin time depending on age :

Age	Ideal Prothrombin time value
<5 years	12.121
5-10 years	12.243
10-15 years	12.366
15-20 years	12.491
20-25 years	12.617
25-30 years	12.744
30-35 years	12.872
35-40 years	13.002
40-45 years	13.133
45-50 years	13.265
50-55 years	13.399
55-60 years	13.534
60-70 years	13.67
70-80 years	13.808
80-90 years	13.947
90-100 years	14.088
>100 years	14.23

*Ideal values are calculated based on our database of patient records

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Some examples of conditions that increase or decrease Prothrombin time levels include:

• Liver disease
• Vitamin K abnormality
• Hemophilia A and hemophilia B
• Decreased or defective factor I (fibrinogen), II (prothrombin), V or X
• Willebrand disease

If you want your blood test report to be interpreted by Prothrombin time specialist, 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

Normal range of RDW : 11.6 - 14 %

Ideal values of RDW depending on age :

Age	Ideal RDW value
<5 years	11.717
5-10 years	11.835
10-15 years	11.954
15-20 years	12.074
20-25 years	12.196
25-30 years	12.319
30-35 years	12.443
35-40 years	12.568
40-45 years	12.695
45-50 years	12.823
50-55 years	12.952
55-60 years	13.083
60-70 years	13.215
70-80 years	13.348
80-90 years	13.483
90-100 years	13.619
>100 years	13.756

High Prothrombin time and low RDW can be caused by a lot of reasons. If you take Prothrombin time and RDW blood tests and the results are higher than 16 seconds for Prothrombin time and lower than 11.6 % for RDW, 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 RDW Tests Are Done :

If your doctor wants Prothrombin time and RDW tests on you, you may need to go through these tests. During the Prothrombin time and RDW 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 RDW Test reports by your pathologist.