What causes high APTT and low RDW SD?

High APTT and low RDW SD can be caused by many reasons.

If your APTT is in between 22 seconds and 35 seconds and your RDW SD is in between 39 fL and 46 fL then you need not worry as these are the normal ranges for APTT and RDW SD 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 22.389
5-10 years 22.785
10-15 years 23.188
15-20 years 23.598
20-25 years 24.016
25-30 years 24.441
30-35 years 24.874
35-40 years 25.314
40-45 years 25.762
45-50 years 26.218
50-55 years 26.682
55-60 years 27.154
60-70 years 27.635
70-80 years 28.124
80-90 years 28.622
90-100 years 29.129
>100 years 29.645

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

Your APTT result may be wrong. Click to know the reason in detail

Click here to know Symptoms of High APTT

Click here to know Symptoms of Low RDW SD

Besides Lab test failures, there are many other reasons for inaccurate blood results. Know the common reasons for inaccurate blood test results

Normal range of APTT found among women : - seconds

Ideal values of RDW SD depending on age :
Age Ideal RDW SD value
<5 years 39.69
5-10 years 40.393
10-15 years 41.108
15-20 years 41.836
20-25 years 42.576
25-30 years 43.33
30-35 years 44.097
35-40 years 44.878
40-45 years 45.672
45-50 years 45.657
50-55 years 45.643
55-60 years 45.629
60-70 years 45.615
70-80 years 45.6
80-90 years 45.586
90-100 years 45.572
>100 years 45.558

Click here to know Symptoms of High APTT

Click here to know Symptoms of Low RDW SD

Click here to upload your blood test report

Click here to consult a doctor for your Low APTT problem

High APTT and low RDW SD can be caused by a lot of reasons. If you take APTT and RDW SD blood tests and the results are higher than 35 seconds for APTT and lower than 39 fL for RDW SD, 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 RDW SD Tests Are Done :

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

Click here to upload your blood test report

Click here to consult a doctor for your Low APTT problem

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