2 doctors weighed in:
What is meant by urea nitrogen and is it dangerous?
2 doctors weighed in

Dr. Martin Raff
Internal Medicine - Infectious Disease
1 doctor agrees
In brief: No
Blood urea nitrogen is excreted by the kidneys and low levels are quite normal.
When there is a reduced function of the blood flow to the kidney or kidney failure, the BUN rises, but it is not very specific. There are other tests to measure degrees of kidney dysfunction.

In brief: No
Blood urea nitrogen is excreted by the kidneys and low levels are quite normal.
When there is a reduced function of the blood flow to the kidney or kidney failure, the BUN rises, but it is not very specific. There are other tests to measure degrees of kidney dysfunction.
Dr. Martin Raff
Dr. Martin Raff
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