A 31-year-old member asked:
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can you tell me how glomerular filtration affect or influence blood volume, urine production, red blood cell production?

1 doctor answer
Dr. Ed Friedlander
43 years experience Pathology
Basic physiology: Increased GFR means more urine, all other things being equal which they never are; if I drink a glass of water, GFR goes up some for a while and the urine's gone. Blood volume affects pressure at the glomerulus in various ways, and water lost in the blood becomes urine, reducing blood volume. Kidneys make erythropoietin stimulating red cell production by GFR-unrelated mechanisms.
Answered on Jul 17, 2014

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