What causes high APTT and low TSH 3?

High APTT and low TSH 3 can be caused by many reasons.

If your APTT is in between 22 seconds and 35 seconds and your TSH 3 is in between 0.55 uIU/mL and 4.78 uIU/mL then you need not worry as these are the normal ranges for APTT and TSH 3 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	22.385
5-10 years	22.777
10-15 years	23.176
15-20 years	23.582
20-25 years	23.995
25-30 years	24.415
30-35 years	24.843
35-40 years	25.278
40-45 years	25.721
45-50 years	26.171
50-55 years	26.629
55-60 years	27.095
60-70 years	27.569
70-80 years	28.052
80-90 years	28.543
90-100 years	29.043
>100 years	29.552

*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 TSH 3 : 0.55 - 4.78 uIU/mL

Ideal values of TSH 3 depending on age :

Age	Ideal TSH 3 value
<5 years	0.56
5-10 years	0.57
10-15 years	0.58
15-20 years	0.59
20-25 years	0.6
25-30 years	0.611
30-35 years	0.622
35-40 years	0.633
40-45 years	0.644
45-50 years	0.655
50-55 years	0.666
55-60 years	0.678
60-70 years	0.69
70-80 years	0.702
80-90 years	0.714
90-100 years	0.727
>100 years	0.74

High APTT and low TSH 3 can be caused by a lot of reasons. If you take APTT and TSH 3 blood tests and the results are higher than 35 seconds for APTT and lower than 0.55 uIU/mL for TSH 3, 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 TSH 3 Tests Are Done :

If your doctor wants APTT and TSH 3 tests on you, you may need to go through these tests. During the APTT and TSH 3 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 TSH 3 Test reports by your pathologist.