What causes high Vitamin D and low BUN?

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

If your Vitamin D is in between 75 nmol/L and 250 nmol/L and your BUN is in between 6 mg/dL and 20 mg/dL then you need not worry as these are the normal ranges for Vitamin D and BUN 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	76.306
5-10 years	77.634
10-15 years	78.986
15-20 years	80.361
20-25 years	81.76
25-30 years	83.183
30-35 years	84.631
35-40 years	86.104
40-45 years	87.603
45-50 years	89.128
50-55 years	90.68
55-60 years	92.259
60-70 years	93.865
70-80 years	95.499
80-90 years	97.162
90-100 years	98.854
>100 years	100.575

*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 BUN : 6 - 20 mg/dL

Ideal values of BUN depending on age :

Age	Ideal BUN value
<5 years	6.104
5-10 years	6.21
10-15 years	6.318
15-20 years	6.428
20-25 years	6.54
25-30 years	6.654
30-35 years	6.77
35-40 years	6.888
40-45 years	7.008
45-50 years	7.13
50-55 years	7.254
55-60 years	7.38
60-70 years	7.508
70-80 years	7.639
80-90 years	7.772
90-100 years	7.907
>100 years	8.045

High Vitamin D and low BUN can be caused by a lot of reasons. If you take Vitamin D and BUN blood tests and the results are higher than 250 nmol/L for Vitamin D and lower than 6 mg/dL for BUN, 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 BUN Tests Are Done :

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