What causes high APTT and low ESR?

High APTT and low ESR can be caused by many reasons.

If your APTT is in between 22 seconds and 35 seconds and your ESR is in between 0 mm/hr and 14 mm/hr then you need not worry as these are the normal ranges for APTT and ESR 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 APTT : 22 - 35 seconds

Ideal values of APTT depending on age :

Age	Ideal APTT value
<5 years	22.378
5-10 years	22.762
10-15 years	23.153
15-20 years	23.55
20-25 years	23.954
25-30 years	24.365
30-35 years	24.783
35-40 years	25.208
40-45 years	25.641
45-50 years	26.081
50-55 years	26.529
55-60 years	26.984
60-70 years	27.447
70-80 years	27.918
80-90 years	28.397
90-100 years	28.884
>100 years	29.38

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

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

• Liver disease
• Vitamin K abnormality
• Decreased or defective factor I (fibrinogen), II (prothrombin), V or X
• Hemophilia A and hemophilia B
• Willebrand disease

If you want your blood test report to be interpreted by APTT specialist, you can upload your report. Our APTT 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 ESR : 0 - 14 mm/hr

Ideal values of ESR depending on age :

Age	Ideal ESR value
<5 years	2.034
5-10 years	2.069
10-15 years	2.105
15-20 years	2.141
20-25 years	2.178
25-30 years	2.215
30-35 years	2.253
35-40 years	2.292
40-45 years	2.331
45-50 years	2.371
50-55 years	2.412
55-60 years	2.453
60-70 years	2.495
70-80 years	2.538
80-90 years	2.582
90-100 years	2.626
>100 years	2.671

High APTT and low ESR can be caused by a lot of reasons. If you take APTT and ESR blood tests and the results are higher than 35 seconds for APTT and lower than 0 mm/hr for ESR, 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 APTT and ESR Tests Are Done :

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