What causes high Prothrombin time and low Alkaline phosphatase?

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

If your Prothrombin time is in between 12 seconds and 16 seconds and your Alkaline phosphatase is in between 30 U/L and 120 U/L then you need not worry as these are the normal ranges for Prothrombin time and Alkaline phosphatase 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	12.123
5-10 years	12.248
10-15 years	12.374
15-20 years	12.501
20-25 years	12.63
25-30 years	12.76
30-35 years	12.891
35-40 years	13.024
40-45 years	13.158
45-50 years	13.293
50-55 years	13.43
55-60 years	13.568
60-70 years	13.707
70-80 years	13.848
80-90 years	13.99
90-100 years	14.134
>100 years	14.279

*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 Alkaline phosphatase : 30 - 120 U/L

Ideal values of Alkaline phosphatase depending on age :

Age	Ideal Alkaline phosphatase value
<5 years	30.308
5-10 years	30.62
10-15 years	30.935
15-20 years	31.253
20-25 years	31.574
25-30 years	31.899
30-35 years	32.227
35-40 years	32.558
40-45 years	32.893
45-50 years	33.231
50-55 years	33.573
55-60 years	33.918
60-70 years	34.267
70-80 years	34.619
80-90 years	34.975
90-100 years	35.335
>100 years	35.698

High Prothrombin time and low Alkaline phosphatase can be caused by a lot of reasons. If you take Prothrombin time and Alkaline phosphatase blood tests and the results are higher than 16 seconds for Prothrombin time and lower than 30 U/L for Alkaline phosphatase, 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 Alkaline phosphatase Tests Are Done :

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