Creatinine Clearance Estimate by Cockcroft-Gault Equation (SI units)
Input:
Sex
Female (0.85)
Male (1)
Age
mo
yr
Serum Creat
mcmol/L
mg%
mg/dL
mmol/L
Weight
kg
lb
Result:
Creat Clear
L/min
L/sec
mL/hr
mL/min
mL/sec
Decimal Precision:
0
1
2
3
Notes
Equation parameters such as
Sex
, have two or more discrete values that may be used in the calculation. The numbers in the parentheses, e.g. (0.85), represent the values that will be used.
The default unit of measure for weight is kilograms. Please verify that the correct unit of measure has been selected.
This equation provides an estimate of the creatinine clearance (
Creat Clear
) if the plasma creatinine concentration is stable.
Weight
is the estimated lean body weight.
References
Cockcroft DW, Gault MH. Prediction of creatinine clearance from serum creatinine.
Nephron
. 1976;16(1):31-41. PMID: 1244564
CreatClear = 0.0205 * Sex * (140 - Age) * Weight / SerumCreat
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