What causes high BUN and low Random blood glucose?

High BUN and low Random blood glucose can be caused by many reasons.

If your BUN is in between 6 mg/dL and 20 mg/dL and your Random blood glucose is in between 70 mg/dl and 140 mg/dl then you need not worry as these are the normal ranges for BUN and Random blood glucose 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	6.258
20-25 years	6.324
25-30 years	6.391
30-35 years	6.459
35-40 years	6.527
40-45 years	6.596
45-50 years	6.666
50-55 years	6.737
55-60 years	6.808
60-70 years	6.88
70-80 years	6.953
80-90 years	7.027
90-100 years	7.101
>100 years	7.176

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

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Normal range of Random blood glucose : 70 - 140 mg/dl

Ideal values of Random blood glucose depending on age :

Age	Ideal Random blood glucose value
<5 years	70.741
5-10 years	71.489
10-15 years	72.245
15-20 years	73.009
20-25 years	73.781
25-30 years	74.562
30-35 years	75.351
35-40 years	76.148
40-45 years	76.954
45-50 years	77.768
50-55 years	78.591
55-60 years	79.422
60-70 years	80.262
70-80 years	81.111
80-90 years	81.969
90-100 years	82.836
>100 years	83.712

High BUN and low Random blood glucose can be caused by a lot of reasons. If you take BUN and Random blood glucose blood tests and the results are higher than 20 mg/dL for BUN and lower than 70 mg/dl for Random blood glucose, 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 Random blood glucose Tests Are Done :

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

Medical References

• Mayo Clinic – Blood urea nitrogen (BUN) test
• MedlinePlus – BUN (Blood Urea Nitrogen)
• Cleveland Clinic – Blood Urea Nitrogen (BUN): Testing, Levels & Indication