Question

if a patient presents to your office with low blood urea nitrogen where would you suspect the problem to be?
a) kidney
b) liver
c) pancreas
d) gallbladder

Explanation:

Blood urea nitrogen (BUN) is related to protein metabolism. The liver is the main organ involved in protein - nitrogen metabolism. Low BUN can be a sign of liver problems such as severe liver damage where the liver's ability to produce urea from ammonia is impaired. The kidney mainly filters urea, and problems with the pancreas and gallbladder are not directly related to BUN levels in terms of production.

Answer:

b) liver