What causes high D Dimer and low Prothrombin time?

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

If your D Dimer is in between 0 ug/mL and 0.51 ug/mL and your Prothrombin time is in between 12 seconds and 16 seconds then you need not worry as these are the normal ranges for D Dimer and Prothrombin time 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 D Dimer : 0 - 0.51 ug/mL

Ideal values of D Dimer depending on age :

Age	Ideal D Dimer value
<5 years	0.114
5-10 years	0.118
10-15 years	0.122
15-20 years	0.126
20-25 years	0.131
25-30 years	0.136
30-35 years	0.141
35-40 years	0.146
40-45 years	0.151
45-50 years	0.157
50-55 years	0.163
55-60 years	0.169
60-70 years	0.175
70-80 years	0.181
80-90 years	0.188
90-100 years	0.195
>100 years	0.202

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

If you want your blood test report to be interpreted by D Dimer specialist, then you can upload your report. Our D Dimer 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 D Dimer levels include:

• Smoking
• Obesity
• Clotting disorder such as factor V Leiden mutation
• Antiphospholipid syndrome
• Prolonged immobility

If you want your blood test report to be interpreted by D Dimer specialist, you can upload your report. Our D Dimer 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 Prothrombin time : 12 - 16 seconds

Ideal values of Prothrombin time depending on age :

Age	Ideal Prothrombin time value
<5 years	12.442
5-10 years	12.9
10-15 years	13.375
15-20 years	13.867
20-25 years	14.377
25-30 years	14.906
30-35 years	15.455
35-40 years	15.434
40-45 years	15.413
45-50 years	15.98
50-55 years	15.958
55-60 years	15.936
60-70 years	15.914
70-80 years	15.893
80-90 years	15.872
90-100 years	15.85
>100 years	15.828

High D Dimer and low Prothrombin time can be caused by a lot of reasons. If you take D Dimer and Prothrombin time blood tests and the results are higher than 0.51 ug/mL for D Dimer and lower than 12 seconds for Prothrombin time, 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 D Dimer and Prothrombin time Tests Are Done :

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