learn.howToCalculate
learn.whatIsHeading
eGFR (estimated Glomerular Filtration Rate) measures kidney function — how well the kidneys filter waste from blood. Calculated from serum creatinine, age, and sex using the CKD-EPI 2021 equation (replaces MDRD). Normal eGFR > 90 mL/min/1.73m².
Guida passo passo
- 1CKD-EPI 2021: eGFR = 142 × min(Cr/κ,1)^α × max(Cr/κ,1)^-1.200 × 0.9938^Age × 1.012 (female)
- 2κ = 0.7 (female), 0.9 (male) · α = −0.241 (female), −0.302 (male)
- 3Classify by eGFR into CKD stages G1–G5
Esempi risolti
Ingresso
Female, age 55, creatinine 1.1 mg/dL
Risultato
eGFR ≈ 58 mL/min/1.73m² → G3a (mildly-moderately reduced)
Warrants nephrology referral
Pronto per calcolare? Prova la calcolatrice gratuita di eGFR Calculator (CKD-EPI)
Provalo tu stesso →