A 47-year-old member asked:
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what is meant by urea nitrogen and is it dangerous?

1 doctor answer
Dr. Martin Raff
55 years experience Infectious Disease
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.
Answered on Oct 3, 2016
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