Weill Medical College of Cornell University Pediatric Critical Care Medicine
Emergency & Drip Dosing
A-a Gradient
Age
Base Excess
BEE
BMI
BSA
Ca++Equivalents
Conversions
Cr Cl - Measured
Cr Cl - Schwartz
FENa
Half-Life
Oxygen Content
Oxygen Index
Oxygen Sat
Osm - Serum
Peak Flow
Pharmacokinetics
Ventilation Index
 
Other Calculators

 

Medical Calculators

Creatinine Clearance
 

Calculate creatinine clearance from a timed urine collection (time, volume, and creatinine concentration), and plasma creatinine. In pediatrics, it is generally corrected to a body surface area of 1.73 m2 (standard body surface area of an adult).

Input Collection Time (hr)    
Input Urine Volume (mL)    
Input Urine Creatinine (mg/dL)    
Input Plasma Creatinine (mg/dL)    
For correction for BSA, input weight and height:
Input Weight (kg) kg lbs
Input Height (cm) cm in
 
 
CrCl (mL/min) =    
Corrected CrCl (mL/min/1.73*m2) =    

The formula for the calculation is as below. The BSA here is calculated from the height and weight with the formula of DuBois and DuBois.

CrCl = UCr * UVol
PCr * Tmin

Corrected CrCl = CrCl * 1.73
BSA

Reference range in our laboratory of an "uncorrected" creatinine clearance for an adult male is 90-139 mL/minute, and for an adult female is 80-125 mL/minute. Many medications must be adjusted for renal impairment when the CrCl falls below 50 mL/min.

 

Created: January 7, 2000. Revised: October 19, 2001
© 1998-2001 Steven Pon, MD, Weill Medical College of Cornell University. All rights reserved.