Renal & Hepatic Function

GFR estimation, creatinine clearance, and liver function formulas.

Cockcroft-Gault (Creatinine Clearance)

age in years, weight in kg, SCr = serum creatinine in mg/dL. Multiply by 0.85 for females.

CrCl = \frac{(140 - age) \cdot weight}{72 \cdot SCr} \cdot (0.85\text{ if female})

MDRD GFR Equation

Estimated glomerular filtration rate. SCr in mg/dL, age in years.

eGFR = 175 \cdot SCr^{-1.154} \cdot age^{-0.203} \cdot (0.742\text{ if female}) \cdot (1.212\text{ if black})

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