What causes high BUN and low Vitamin B12?

High BUN and low Vitamin B12 can be caused by many reasons.

If your BUN is in between 6 mg/dL and 20 mg/dL and your Vitamin B12 is in between 211 pg/mL and 911 pg/mL then you need not worry as these are the normal ranges for BUN and Vitamin B12 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 BUN : 6 - 20 mg/dL

Ideal values of BUN depending on age :
Age Ideal BUN value
<5 years 6.063
5-10 years 6.127
10-15 years 6.192
15-20 years 6.257
20-25 years 6.323
25-30 years 6.39
30-35 years 6.457
35-40 years 6.525
40-45 years 6.594
45-50 years 6.664
50-55 years 6.734
55-60 years 6.805
60-70 years 6.877
70-80 years 6.949
80-90 years 7.022
90-100 years 7.096
>100 years 7.171

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

Your BUN result may be wrong. Click to know the reason in detail

Click here to know Symptoms of High BUN

Click here to know Symptoms of Low Vitamin B12

Besides Lab test failures, there are many other reasons for inaccurate blood results. Know the common reasons for inaccurate blood test results

Can Low or High BUN cause Heart Attack? Click here to know

Normal range of BUN found among women : - mg/dL

Ideal values of Vitamin B12 depending on age :
Age Ideal Vitamin B12 value
<5 years 213.224
5-10 years 215.471
10-15 years 217.742
15-20 years 220.037
20-25 years 222.356
25-30 years 224.7
30-35 years 227.068
35-40 years 229.461
40-45 years 231.88
45-50 years 234.324
50-55 years 236.794
55-60 years 239.29
60-70 years 241.812
70-80 years 244.361
80-90 years 246.937
90-100 years 249.54
>100 years 252.17

Click here to know Symptoms of High BUN

Click here to know Symptoms of Low Vitamin B12

Can Low or High BUN cause Heart Attack? Click here to know

Click here to upload your blood test report

Click here to consult a doctor for your Low BUN problem

High BUN and low Vitamin B12 can be caused by a lot of reasons. If you take BUN and Vitamin B12 blood tests and the results are higher than 20 mg/dL for BUN and lower than 211 pg/mL for Vitamin B12, 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 BUN and Vitamin B12 Tests Are Done :

If your doctor wants BUN and Vitamin B12 tests on you, you may need to go through these tests. During the BUN and Vitamin B12 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 BUN and Vitamin B12 Test reports by your pathologist.

Click here to upload your blood test report

Click here to consult a doctor for your Low BUN problem

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