Physiology General fca45b5a Which of following formula denotes free water clearance? A Urine flow rate multiplied by osmolal clearance B Urine flow rate minus osmolal clearance C Urine flow rate divided by osmolol clearance D Urine flow,rate plus osmolal clearance High-Yield Explanation Ans. is'b'i.e., Urine flow rate minus osmolal clearanceFree water clearance (CH2O):CH2O = V- Cosm