What causes high Prothrombin time and low Bilirubin direct?

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

If your Prothrombin time is in between 12 seconds and 16 seconds and your Bilirubin direct is in between 0 mg/dL and 0.2 mg/dL then you need not worry as these are the normal ranges for Prothrombin time and Bilirubin direct 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	12.122
5-10 years	12.246
10-15 years	12.371
15-20 years	12.497
20-25 years	12.624
25-30 years	12.753
30-35 years	12.883
35-40 years	13.014
40-45 years	13.147
45-50 years	13.281
50-55 years	13.416
55-60 years	13.553
60-70 years	13.691
70-80 years	13.831
80-90 years	13.972
90-100 years	14.115
>100 years	14.259

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

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

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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 Bilirubin direct : 0 - 0.2 mg/dL

Ideal values of Bilirubin direct depending on age :

Age	Ideal Bilirubin direct value
<5 years	0.11112
5-10 years	0.11225
10-15 years	0.11339
15-20 years	0.11455
20-25 years	0.11572
25-30 years	0.1169
30-35 years	0.11809
35-40 years	0.11929
40-45 years	0.12051
45-50 years	0.12174
50-55 years	0.12298
55-60 years	0.12423
60-70 years	0.1255
70-80 years	0.12678
80-90 years	0.12807
90-100 years	0.12938
>100 years	0.1307

High Prothrombin time and low Bilirubin direct can be caused by a lot of reasons. If you take Prothrombin time and Bilirubin direct blood tests and the results are higher than 16 seconds for Prothrombin time and lower than 0 mg/dL for Bilirubin direct, 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 Bilirubin direct Tests Are Done :

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