3 doctors weighed in:

What causes elevated bun/creatinine ratio?

3 doctors weighed in
Dr. Michael Taylor
Critical Care
2 doctors agree

In brief: Many causes

Blood tests called BUN (blood urea nitrogen) and cr (creatinine) are often checked to help evaluate kidney function.
The normal bun/cr ration is about 10:1 to 15:1. Some of the more common causes of an elevated bun/cr ratio are: dehydration, GI bleeding, increased protein intake, small amount of muscle mass, increased muscle breakdown.

In brief: Many causes

Blood tests called BUN (blood urea nitrogen) and cr (creatinine) are often checked to help evaluate kidney function.
The normal bun/cr ration is about 10:1 to 15:1. Some of the more common causes of an elevated bun/cr ratio are: dehydration, GI bleeding, increased protein intake, small amount of muscle mass, increased muscle breakdown.
Dr. Michael Taylor
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