Question
The amount of liquid filtered by glomeruli of kidney in 24 hours period is
170 L
100 L
200-250 cc
500-1000 cc
Solution
A.
170 L
The volume of filtrate formed by both kidneys per minute is termed glomerular filtration rate (GFR). Approximately 20% of your cardiac output is filtered by your kidneys per minute under resting conditions. The work of the kidneys produces about 125 mL/min filtrate in men (range of 90 to 140 mL/min) and 105 mL/min filtrate in women (range of 80 to 125 mL/min). This amount equates to a volume of about 180 L/day in men and 150 L/day in women. However, 99% of this filtrate is returned to the circulation through reabsorption resulting in only about 1–2 liters of urine per day.
