Vote for your favorite equations
Vote for your favorite equations to guide the direction of future app enhancements. If your favorite equation is not shown in the list below, you can suggest it for inclusion in Neph+ version 2. After submitting your vote, please enter the name of your equation in the “comments” section.
Voting directions
Browse through the equations in the left menu then drag and drop your favorites on the right. Press Submit when done.


Vote for your favorite equations
Vote for your favorite equations to guide the direction of future app enhancements. If your favorite equation is not shown in the list below, you can suggest it for inclusion in Neph+ version 2. After submitting your vote, please enter the name of your equation in the “comments” section.
Voting directions
Browse through the equations in the left menu then drag and drop your favorites on the right. Press Submit when done.
Kidney Failure Risk
8-Variable Kidney Failure Risk Equation
Predict 2- and 5-year ESRD risk
4-Variable Kidney Failure Risk Equation
Predict 2- and 5-year ESRD risk
eGFR
4-Variable Modification of Diet in Renal Disease (MDRD)
Estimate GFR from serum creatinine
6-Variable Modification of Diet in Renal Disease (MDRD)
Estimate GFR from serum creatinine
CKD-EPI Creatinine
Estimate GFR from serum creatinine
CKD-EPI Cystatin C
Estimate eGFR from serum Cystatin C
Creatinine Clearance: Based on 24-hour Urine
Calculate measured creatinine clearance from timed urine collection
Creatinine Clearance: Cockcroft-Gault Equation
Estimate creatinine clearance from serum creatinine
Mayo Quadratic
Estimate GFR from serum creatinine
Schwartz Bedside (2009)
Estimate GFR from serum creatinine in children
Schwartz Full Model (2009)
Estimate GFR from serum creatinine in children
Fluids & Electrolytes
Calcium Correction for Hypoalbuminemia
Calculate serum calcium for hypoalbuminemia
Fractional Excretion of Potassium
Calculate fractional excretion of K
Fractional Excretion of Sodium
Calculate fractional excretion of Na
Henderson-Hasselbalch
Calculate serum pH from Henderson-Hasselbalch equation
Osmolal Gap
Calculate serum osmolal gap in patients with metabolic acidosis
Serum Anion Gap
Calculate serum anion gap
Sodium Correction in Hyperglycemia
Calculate serum sodium for hyperglycemia
Total Body Water by Watson
Estimate total body water
Transtubular Potassium Gradient
Calculate TTKG in hyperkalemic patients
Urine Anion Gap
Calculate urine anion gap in patients with metabolic acidosis
Water Deficit in Hypernatremia
Calculate water deficit in hypernatremic patients
Winter's Formula
Predict respiratory compensation in metabolic acidosis
My favorite equations
Kidney Failure Risk
8-Variable Kidney Failure Risk Equation
Predict 2- and 5-year ESRD risk
4-Variable Kidney Failure Risk Equation
Predict 2- and 5-year ESRD risk
eGFR
4-Variable Modification of Diet in Renal Disease (MDRD)
Estimate GFR from serum creatinine
6-Variable Modification of Diet in Renal Disease (MDRD)
Estimate GFR from serum creatinine
CKD-EPI Creatinine
Estimate GFR from serum creatinine
CKD-EPI Cystatin C
Estimate eGFR from serum Cystatin C
Creatinine Clearance: Based on 24-hour Urine
Calculate measured creatinine clearance from timed urine collection
Creatinine Clearance: Cockcroft-Gault Equation
Estimate creatinine clearance from serum creatinine
Mayo Quadratic
Estimate GFR from serum creatinine
Schwartz Bedside (2009)
Estimate GFR from serum creatinine in children
Schwartz Full Model (2009)
Estimate GFR from serum creatinine in children
Fluids & Electrolytes
Calcium Correction for Hypoalbuminemia
Calculate serum calcium for hypoalbuminemia
Fractional Excretion of Potassium
Calculate fractional excretion of K
Fractional Excretion of Sodium
Calculate fractional excretion of Na
Henderson-Hasselbalch
Calculate serum pH from Henderson-Hasselbalch equation
Osmolal Gap
Calculate serum osmolal gap in patients with metabolic acidosis
Serum Anion Gap
Calculate serum anion gap
Sodium Correction in Hyperglycemia
Calculate serum sodium for hyperglycemia
Total Body Water by Watson
Estimate total body water
Transtubular Potassium Gradient
Calculate TTKG in hyperkalemic patients
Urine Anion Gap
Calculate urine anion gap in patients with metabolic acidosis
Water Deficit in Hypernatremia
Calculate water deficit in hypernatremic patients
Winter's Formula
Predict respiratory compensation in metabolic acidosis