For blood urea nitrogen (BUN) and creatinine values:
a. serum creatinine is a protein produced in the kidneys.
b. BUN and serum creatinine values that are higher than the normal range indicate renal failure.
c. urea is a waste product of carbohydrate metabolism in the intestines.
d. BUN values that are below normal indicate renal failure.
B
BUN and creatinine values will increase with renal failure. All of the other statements are false.
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