What causes high Vitamin D and low APTT?

High Vitamin D and low APTT can be caused by many reasons.

If your Vitamin D is in between 75 nmol/L and 250 nmol/L and your APTT is in between 22 seconds and 35 seconds then you need not worry as these are the normal ranges for Vitamin D and APTT 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 Vitamin D : 75 - 250 nmol/L

Ideal values of Vitamin D depending on age :

Age	Ideal Vitamin D value
<5 years	76.32
5-10 years	77.663
10-15 years	79.03
15-20 years	80.421
20-25 years	81.836
25-30 years	83.276
30-35 years	84.742
35-40 years	86.233
40-45 years	87.751
45-50 years	89.295
50-55 years	90.867
55-60 years	92.466
60-70 years	94.093
70-80 years	95.749
80-90 years	97.434
90-100 years	99.149
>100 years	100.894

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

If you want your blood test report to be interpreted by Vitamin D specialist, then you can upload your report. Our Vitamin D expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours. Upload blood test report now

1,37,160

Total number of patients treated

Some examples of conditions that increase or decrease Vitamin D levels include:

• Liver disease
• Celiac disease
• Your body isn’t properly absorbing or using vitamin D.
• Crohn's disease
• Kidney disease

If you want your blood test report to be interpreted by Vitamin D specialist, you can upload your report. Our Vitamin D 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 APTT : 22 - 35 seconds

Ideal values of APTT depending on age :

Age	Ideal APTT value
<5 years	22.387
5-10 years	22.781
10-15 years	23.182
15-20 years	23.59
20-25 years	24.005
25-30 years	24.427
30-35 years	24.857
35-40 years	25.294
40-45 years	25.739
45-50 years	26.192
50-55 years	26.653
55-60 years	27.122
60-70 years	27.599
70-80 years	28.085
80-90 years	28.579
90-100 years	29.082
>100 years	29.594

High Vitamin D and low APTT can be caused by a lot of reasons. If you take Vitamin D and APTT blood tests and the results are higher than 250 nmol/L for Vitamin D and lower than 22 seconds for APTT, 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 Vitamin D and APTT Tests Are Done :

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

Medical References

• MedlinePlus – Vitamin D Test
• MedlinePlus – 25-hydroxy vitamin D test
• Mayo Clinic – 2425D - Overview: 25-Hydroxyvitamin D:24,25-Dihydroxyvitamin D Ratio, Serum