What causes high BUN and low Chloride?

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

If your BUN is in between 6 mg/dL and 20 mg/dL and your Chloride is in between 98 mmol/L and 107 mmol/L then you need not worry as these are the normal ranges for BUN and Chloride 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	6.126
10-15 years	6.19
15-20 years	6.255
20-25 years	6.32
25-30 years	6.386
30-35 years	6.453
35-40 years	6.521
40-45 years	6.589
45-50 years	6.658
50-55 years	6.728
55-60 years	6.798
60-70 years	6.869
70-80 years	6.941
80-90 years	7.014
90-100 years	7.087
>100 years	7.161

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

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Normal range of Chloride : 98 - 107 mmol/L

Ideal values of Chloride depending on age :

Age	Ideal Chloride value
<5 years	99.026
5-10 years	100.063
10-15 years	101.111
15-20 years	102.17
20-25 years	103.24
25-30 years	104.321
30-35 years	105.413
35-40 years	106.517
40-45 years	106.505
45-50 years	106.493
50-55 years	106.481
55-60 years	106.469
60-70 years	106.458
70-80 years	106.447
80-90 years	106.436
90-100 years	106.424
>100 years	106.412

High BUN and low Chloride can be caused by a lot of reasons. If you take BUN and Chloride blood tests and the results are higher than 20 mg/dL for BUN and lower than 98 mmol/L for Chloride, 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 Chloride Tests Are Done :

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