MCL Web Resources

Pathology Services


CREATININE CLEARANCE (24-HOUR):

Special Collection:

 Calculation: ml of plasma cleared per minute per standard surface area equals:

 where:

U =concentration of creatinine in urine in mg/dl Before calculation, multiply total creatinine excreted (reported as g/L) by 100 to obtain mg/dl.

 P = concentration of creatinine in plasma in mg/dl.

 V = volume of urine in ml divided by the time of collection in minutes.

 A = body surface area in square meters. Calculate body surface area of patient from standard nomogram.