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This text appears to be a formula for estimating the renal clearance (cLcr) of a patient based on their age and weight (in kg) along with their serum creatinine level (in mg/dL). Specifically, the formula states that cLcr is equal to 140 minus the patient's age in years multiplied by their weight in kg, and then adjusted for female patients by dividing the result by 85. This value is then divided by their serum creatinine level in mg/dL, which is multiplied by 72. The purpose of this formula is to help healthcare providers assess a patient's kidney function, as renal clearance is a key measure of how well the kidneys are able to filter waste products from the blood.*