What causes high Prothrombin time and low PCV?

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

If your Prothrombin time is in between 12 seconds and 16 seconds and your PCV is in between 39 % and 51 % then you need not worry as these are the normal ranges for Prothrombin time and PCV respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

Some examples of conditions that can 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

Normal range of Prothrombin time : 12 - 16 seconds

Ideal values of Prothrombin time depending on age :

Age	Ideal Prothrombin time value
<5 years	12.127
5-10 years	12.255
10-15 years	12.385
15-20 years	12.516
20-25 years	12.648
25-30 years	12.782
30-35 years	12.917
35-40 years	13.054
40-45 years	13.192
45-50 years	13.331
50-55 years	13.472
55-60 years	13.614
60-70 years	13.758
70-80 years	13.903
80-90 years	14.05
90-100 years	14.199
>100 years	14.349

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

Normal range of PCV : 39 - 51 %

Ideal values of PCV depending on age :

Age	Ideal PCV value
<5 years	39.412
5-10 years	39.829
10-15 years	40.25
15-20 years	40.675
20-25 years	41.105
25-30 years	41.539
30-35 years	41.978
35-40 years	42.422
40-45 years	42.87
45-50 years	43.323
50-55 years	43.781
55-60 years	44.244
60-70 years	44.712
70-80 years	45.185
80-90 years	45.663
90-100 years	46.146
>100 years	46.634

High Prothrombin time and low PCV can be caused by a lot of reasons. If you take Prothrombin time and PCV blood tests and the results are higher than 16 seconds for Prothrombin time and lower than 39 % for PCV, 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 PCV Tests Are Done :

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

Medical References

• MedlinePlus – Prothrombin Time Test and INR (PT/INR)
• Mayo Clinic – Prothrombin time test
• Cleveland Clinic – Prothrombin Time (PT/INR) Test