PSIO 532 Study Guide - Final Guide: Renal Blood Flow, Fascia, Renal Artery
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Thus, given the values apah = 1 mg/ ml; upah = 540 mg/ml_;v = 1 ml/min; het = 40% effective rpf = cpah. = upah * v = 540 mg/ml * 1 ml/min = 540 ml/min. = 540 ml_/min/(1- 0. 4) = 540 ml/min /0. 6 = 900 ml/min. Note that the effective renal plasma flow is that plasma which actually passes thru the glomeruli and peritubular capillaries. Hence, it is available to filtration and secretion. Total renal plasma (or blood) flow refers to all the plasma going into the main renal artery. Some of this plasma (typically ~10% but sometimes more), goes to other structures: perirenal fat, fascial tissue, upper ureter, etc. This plasma is not available for filtration and secretion. Be sure you are clear on the distinction between total and effective rpf and rbf. Total rpf = 540 mg/ml * 1 ml/min = 600 ml/min.
