What causes high APTT and low RDW CV?

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

If your APTT is in between 22 seconds and 35 seconds and your RDW CV is in between 11.6 % and 14 % then you need not worry as these are the normal ranges for APTT and RDW CV 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	24.015
25-30 years	24.44
30-35 years	24.872
35-40 years	25.312
40-45 years	25.76
45-50 years	26.216
50-55 years	26.68
55-60 years	27.152
60-70 years	27.632
70-80 years	28.121
80-90 years	28.618
90-100 years	29.124
>100 years	29.639

*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 RDW CV : 11.6 - 14 %

Ideal values of RDW CV depending on age :

Age	Ideal RDW CV value
<5 years	11.805
5-10 years	12.014
10-15 years	12.227
15-20 years	12.443
20-25 years	12.663
25-30 years	12.887
30-35 years	13.115
35-40 years	13.347
40-45 years	13.583
45-50 years	13.823
50-55 years	13.819
55-60 years	13.814
60-70 years	13.809
70-80 years	13.804
80-90 years	13.799
90-100 years	13.795
>100 years	13.791

High APTT and low RDW CV can be caused by a lot of reasons. If you take APTT and RDW CV blood tests and the results are higher than 35 seconds for APTT and lower than 11.6 % for RDW CV, 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 CV Tests Are Done :

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