Question

Typical renal blood flow is about _____ percent of cardiac output under resting conditions.

A) 5
B) 10
C) 25
D) 40
E) 50

Answer 1

The typical renal blood flow is about 20 percent of cardiac output under resting conditions.

Step-by-step explanation:

The typical renal blood flow is about 20 percent of cardiac output under resting conditions.

The glomerular filtration rate (GFR) is the volume of filtrate formed by both kidneys per minute. The heart pumps about 5 L blood per min under resting conditions, and approximately 20 percent or one liter enters the kidneys to be filtered. On average, this liter results in the production of about 125 mL/min filtrate in males and 105 mL/min filtrate in females. This amounts to a volume of about 180 L/day in males and 150 L/day in females.

Therefore, the answer to the question is 20 percent.