The renal clearance ratio or fractional excretion is a relative measure of the speed at which a constituent of urine passes through the kidneys. It is defined by following equation: c l e a r a n c e r a t i o o f X = C x C i n {\displaystyle clearance\ ratio\ of\ X={\frac {C_{x}}{C_{in}}}} X is the analyte substance Cx is the renal plasma clearance of X Cin is the renal plasma clearance of inulin.
The renal clearance ratio or fractional excretion is a relative measure of the speed at which a constituent of urine passes through the kidneys. It is defined by following equation: c l e a r a n c e r a t i o o f X = C x C i n {\displaystyle clearance\ ratio\ of\ X={\frac {C_{x}}{C_{in}}}} X is the analyte substance Cx is the renal plasma clearance of X Cin is the renal plasma clearance of inulin.
Source: Wikipedia "Renal clearance ratio" · CC BY-SA 4.0
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