Estimation of creatinine clearance rate (eCcr) using Cockcroft-Gault formula

Cockcroft-Gault formula is used to estimate creatinine clearance rate using age, weight and serum creatinine level. It is named after the scientists who created the formula.

eCcr =
(140-age) * Weight (in kilograms) * 0.85 (if patient is female)
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72 * Serum creatine (in mg/dl)

Hence, the creatine clearance will be less in elderly individuals and females.