Age:

Gender: Male Female

Height: Inches Centimeters

Weight: Pounds Kilograms

Serum Creatinine (Scr): mg/dL

Renal Stability: Stable creatinine Unstable creatinine

Most recent creatinine: mg/dL      Less recent creatinine: mg/dL      Hours between creatinine values: hours

Calculate

Data Entered Age Gender Height Weight Scr

Determination of Various Weights & Measures Item Value Equation (gender specific when applicable) Actual Body Weight (ABW) Ideal Body Weight (IBW) ABW % of IBW $$\frac{ABW}{IBW} \enskip * \enskip 100\%$$ Adjusted BW (AjBW) $$AjBW \enskip = \enskip IBW \enskip + \enskip [0.4 \enskip * \enskip \left(ABW \enskip - \enskip IBW \right)]$$ Body Mass Index (BMI) $$\frac{Weight \enskip (kg)}{[Height \enskip (m)]^2}$$ Body Surface Area (BSA) $$Mosteller \enskip BSA \enskip (m^2) \enskip = \enskip \sqrt{ \frac{Weight \enskip (kg) \enskip * \enskip Height \enskip (cm)}{3,600}}$$

Estimates of Renal Function
Item	Value	Use	Equation (gender specific when applicable)
Pediatric Population
Schwartz Equation (2009)		Pediatric only (1-18 years)	$$\frac{Height \enskip (cm) \enskip * \enskip 0.413}{S_{cr}}$$
Low Body Weight
Cockcroft & Gault using ABW		Use if ABW < IBW
General Population
Cockcroft & Gault using IBW		Use if ABW is between IBW and 130% of IBW
Obese Population
Cockcroft & Gault using AjBW		Use if ABW > 130% of IBW
Estimation of GFR
CKD-EPI Formula (2021)		Current Standard for eGFR
Unstable Kidney Function
Jelliffe Unstable (1972)		Use if unstable kidney function