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Nephrology Calculators
Referenced calculators for everyday nephrology, from eGFR to transplant dosing.
- 21 tools
- Runs in your browser
- No patient data stored
- For healthcare professionals
Most used eGFR CRRT fluid for hyponatremia ADPKD (Mayo) KFRE
Kidney function 4
Urine studies & stones 5
- FEMgFractional Excretion of Magnesium (FEMg)FEMg · renal magnesium wasting
- FEPFractional Excretion of Phosphate (FEP)FEP · renal phosphate wasting
- FENaFractional Excretion of Sodium (FENa)FENa · prerenal vs. intrinsic AKI
- StoneUrinary Supersaturation and Kidney Stone Risk ToolUrine supersaturation (EQUIL2) · stone-risk profile
- UOGUrine Osmolal Gap (UOG)RTA vs. GI bicarbonate loss
Sodium & water 4
- CRRTCRRT Replacement Fluid Calculator for HyponatremiaDiluting fluid volume for extreme hyponatremia on CRRT
- ΔNaExpected Sodium Change CalculatorMass-balance projection of serum Na over an interval
- FWDFree Water Deficit CalculatorHypernatremia correction / water restriction
- OsmOsmolar Gap CalculatorToxic-alcohol / unmeasured-osmole screen
Acid–base 2
Prognosis & glomerular disease 4
- MayoADPKD Risk Stratification and Future eGFR PredictionMayo imaging class (htTKV by age) · projected eGFR
- IgANIgA Nephropathy Risk CalculatorInternational IgAN Prediction Tool · full model at biopsy
- KFREKidney Failure Risk EquationKFRE-4 · North American calibration
- PEXPEXIVAS oral glucocorticoid taper NewWalsh et al. NEJM 2020 · reduced vs standard
Dialysis & transplant 2
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