Clearance Cockcroft-Gault

The Cockcroft-Gault Creatinine Clearance Calculator estimates kidney filtration capacity using age, weight, and blood creatinine levels. The formula ((140−age)·weight)/(72·Cr) is widely applied to adjust medication doses, particularly for drugs with nephrotoxic risks like aminoglycosides or vancomycin.

For men, the formula remains unchanged, while women receive a 0.85 correction factor. Creatinine clearance reflects kidney efficiency in filtering waste from the blood. Low results indicate impaired renal function, while high values suggest preserved filtration capacity. The method is crucial in dosing drugs where precision impacts safety.

It is recommended in settings requiring renal monitoring, such as chemotherapy or antibiotic therapy. Limitations include its inability to account for body composition (e.g., obesity or sarcopenia), which can skew results. In clinical practice, it is often paired with imaging and additional biomarkers for accuracy.

Patients with medication concerns or kidney health questions should consult a nephrologist. While this tool aids initial screening, it does not replace medical diagnosis. Accuracy depends on reliable lab-measured creatinine values and appropriate patient profiling.