Renal filtration fraction is calculated as
Renal filtration fraction= GFR/(RPF) The filtration fraction, is normally 0.16-0.20. The GFR varies less than the RPF. When there is a fall in systemic blood pressure, the GFR falls less than the RPF because of efferent aeriolar constriction, and consequently the filtration fraction rises.
Renal plasma flow (RPF)/GFR
GFR/RPF
(RPF x GFR)/ Total Blood flow
None of the above
Excretory System (Kidney, Bladder) Acid-Base Balance