A client's most recent blood work reveals a blood urea nitrogen (BUN) level of 36 mg/dL (normal range 8 to 25 mg/dL). Which of the following factors may have contributed to this finding?

A) Increased salt intake
B) Action of ADH
C) Dehydration
D) Parasympathetic nervous system stimulation


Ans: C
Feedback:
During periods of dehydration, the blood volume and glomerular filtration rate (GFR) drop, and BUN levels increase. Increased salt intake, parasympathetic stimulation, and the action of ADH do not normally result in an increase in BUN.

Health & Biomechanics

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