What causes high Prothrombin time and low Plateletcrit?

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

If your Prothrombin time is in between 12 seconds and 16 seconds and your Plateletcrit is in between 0.2 % and 0.39 % then you need not worry as these are the normal ranges for Prothrombin time and Plateletcrit 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	12.128
5-10 years	12.257
10-15 years	12.388
15-20 years	12.52
20-25 years	12.653
25-30 years	12.788
30-35 years	12.924
35-40 years	13.062
40-45 years	13.201
45-50 years	13.342
50-55 years	13.484
55-60 years	13.628
60-70 years	13.773
70-80 years	13.92
80-90 years	14.068
90-100 years	14.218
>100 years	14.37

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

Normal range of Plateletcrit : 0.2 - 0.39 %

Ideal values of Plateletcrit depending on age :

Age	Ideal Plateletcrit value
<5 years	0.202
5-10 years	0.204
10-15 years	0.206
15-20 years	0.208
20-25 years	0.21
25-30 years	0.212
30-35 years	0.214
35-40 years	0.216
40-45 years	0.218
45-50 years	0.22
50-55 years	0.222
55-60 years	0.224
60-70 years	0.226
70-80 years	0.228
80-90 years	0.23
90-100 years	0.232
>100 years	0.234

High Prothrombin time and low Plateletcrit can be caused by a lot of reasons. If you take Prothrombin time and Plateletcrit blood tests and the results are higher than 16 seconds for Prothrombin time and lower than 0.2 % for Plateletcrit, 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 Plateletcrit Tests Are Done :

If your doctor wants Prothrombin time and Plateletcrit tests on you, you may need to go through these tests. During the Prothrombin time and Plateletcrit 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 Plateletcrit 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