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About Creatinine Clearance Calc

This Creatinine Clearance Calculator evaluates renal function via the Cockcroft Gault equation and can offer information on the filtration function of the kidneys.

CrCl explained

Creatinine clearance is one of the renal indicators of the kidney filtration rate. The most common method to determine it is via the Cockcroft Gault equation.

The CrCl calculator requires the patient’s gender, age, height and weight and the serum creatinine. The formulas used are gender specific:

CrCl for men = [(140 - age) x Weight in kg] / (Serum Creatinine in mg/dL x 72)

CrCl for women = [(140 - age) x Weight in kg x 0.85] / (Serum Creatinine in mg/dL x 72)

These can be adapted for use when serum creatinine is expressed in µmol/L:

CrCl for men = [(140 - age) x Weight in kilograms x 1.23] / (Serum Creatinine in µmol/L)

CrCl for women = [(140 - age) x Weight in kilograms x 1.04] / (Serum Creatinine in µmol/L)

The calculation of the ideal body weight takes place via the Devine formula:

Male = 50 kg + (2.3 x (Height in inches - 60))

Female = 45.5 kg + (2.3 x (Height in inches - 60))

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Frequently Asked Questions(FAQ)

What does the Creatinine Clearance Calculator evaluate?

The Creatinine Clearance Calculator evaluates renal function via the Cockcroft Gault equation and provides information on the filtration function of the kidneys.

How is the creatinine clearance determined using the Cockcroft Gault equation?

The creatinine clearance is determined using the Cockcroft Gault equation, which requires the patient's gender, age, height, weight, and serum creatinine. Different formulas are used for men and women.

How is the creatinine clearance calculated for men?

The creatinine clearance for men is calculated using the formula: [(140 - age) x Weight in kg] / (Serum Creatinine in mg/dL x 72).

How is the creatinine clearance calculated for women?

The creatinine clearance for women is calculated using the formula: [(140 - age) x Weight in kg x 0.85] / (Serum Creatinine in mg/dL x 72).

Can the formulas be adapted for serum creatinine expressed in µmol/L?

Yes, the formulas can be adapted for use when serum creatinine is expressed in µmol/L. Different formulas are used for men and women.

How is the creatinine clearance calculated for men with serum creatinine in µmol/L?

The creatinine clearance for men with serum creatinine in µmol/L is calculated using the formula: [(140 - age) x Weight in kilograms x 1.23] / (Serum Creatinine in µmol/L).

How is the creatinine clearance calculated for women with serum creatinine in µmol/L?

The creatinine clearance for women with serum creatinine in µmol/L is calculated using the formula: [(140 - age) x Weight in kilograms x 1.04] / (Serum Creatinine in µmol/L).

How is the calculation of ideal body weight done?

The calculation of ideal body weight is done using the Devine formula. For males: 50 kg + (2.3 x (Height in inches - 60)). For females: 45.5 kg + (2.3 x (Height in inches - 60)).