What causes high BUN and low Hemoglobin?

High BUN and low Hemoglobin can be caused by many reasons.

If your BUN is in between 6 mg/dL and 20 mg/dL and your Hemoglobin is in between 13 g/dL and 17 g/dL then you need not worry as these are the normal ranges for BUN and Hemoglobin 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	6.06
5-10 years	6.121
10-15 years	6.182
15-20 years	6.244
20-25 years	6.306
25-30 years	6.369
30-35 years	6.433
35-40 years	6.497
40-45 years	6.562
45-50 years	6.628
50-55 years	6.694
55-60 years	6.761
60-70 years	6.829
70-80 years	6.897
80-90 years	6.966
90-100 years	7.036
>100 years	7.106

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

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Normal range of Hemoglobin : 13 - 17 g/dL

Ideal values of Hemoglobin depending on age :

Age	Ideal Hemoglobin value
<5 years	13.13
5-10 years	13.261
10-15 years	13.394
15-20 years	13.528
20-25 years	13.663
25-30 years	13.8
30-35 years	13.938
35-40 years	14.077
40-45 years	14.218
45-50 years	14.36
50-55 years	14.504
55-60 years	14.649
60-70 years	14.795
70-80 years	14.943
80-90 years	15.092
90-100 years	15.243
>100 years	15.395

High BUN and low Hemoglobin can be caused by a lot of reasons. If you take BUN and Hemoglobin blood tests and the results are higher than 20 mg/dL for BUN and lower than 13 g/dL for Hemoglobin, 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 Hemoglobin Tests Are Done :

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