What causes high Vitamin D and low Bilirubin direct?

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

If your Vitamin D is in between 75 nmol/L and 250 nmol/L and your Bilirubin direct is in between 0.1 mg/dL and 0.2 mg/dL then you need not worry as these are the normal ranges for Vitamin D and Bilirubin direct respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

Some examples of conditions that can 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

Normal range of Vitamin D : 75 - 250 nmol/L

Ideal values of Vitamin D depending on age :

Age	Ideal Vitamin D value
<5 years	76.29
5-10 years	77.602
10-15 years	78.937
15-20 years	80.295
20-25 years	81.676
25-30 years	83.081
30-35 years	84.51
35-40 years	85.964
40-45 years	87.443
45-50 years	88.947
50-55 years	90.477
55-60 years	92.033
60-70 years	93.616
70-80 years	95.226
80-90 years	96.864
90-100 years	98.53
>100 years	100.225

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

Normal range of Bilirubin direct : 0.1 - 0.2 mg/dL

Ideal values of Bilirubin direct depending on age :

Age	Ideal Bilirubin direct value
<5 years	0.11189
5-10 years	0.11381
10-15 years	0.11577
15-20 years	0.11776
20-25 years	0.11979
25-30 years	0.12185
30-35 years	0.12395
35-40 years	0.12608
40-45 years	0.12825
45-50 years	0.13046
50-55 years	0.1327
55-60 years	0.13498
60-70 years	0.1373
70-80 years	0.13966
80-90 years	0.14206
90-100 years	0.1445
>100 years	0.14699

High Vitamin D and low Bilirubin direct can be caused by a lot of reasons. If you take Vitamin D and Bilirubin direct blood tests and the results are higher than 250 nmol/L for Vitamin D and lower than 0.1 mg/dL for Bilirubin direct, 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 Bilirubin direct Tests Are Done :

If your doctor wants Vitamin D and Bilirubin direct tests on you, you may need to go through these tests. During the Vitamin D and Bilirubin direct 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 Bilirubin direct 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