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Creatinine Clearance

CrCl Calculator

Cockcroft-Gault estimate with contrast-safety guidance.

Quickly estimate a patient's creatinine clearance (CrCl) using the Cockcroft-Gault equation. This tool helps radiographers assess renal function before contrast-enhanced imaging and supports safe clinical decision-making.

Patient parameters

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Fill in the patient parameters and press Calculate to see the CrCl value, KDIGO stage, and clinical guidance.

ROLOGY CLINICAL

For educational and informational purposes only. Creatinine clearance is estimated using the Cockcroft–Gault equation (Cockcroft & Gault, 1976) and is intended primarily to support medication dose adjustment. The estimate assumes stable renal function and should not be used as the sole basis for contrast media administration or other clinical decisions. Clinical judgment and local institutional protocols should always prevail.

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