Nephrology
eGFR (CKD-EPI 2021)
Estimate glomerular filtration rate from creatinine for CKD staging and drug dosing.
Version CKD-EPI 2021 (race-free)
Inputs
Divide µmol/L by 88.4 to convert to mg/dL.
eGFR (mL/min/1.73 m²)
89
CKD category G2. Review all renally cleared drugs and adjust doses.
- Staging requires abnormality for ≥ 3 months plus albuminuria category.
- Estimates are unreliable in AKI, extremes of muscle mass, pregnancy and amputation.
Formula
eGFR = 142 × min(Scr/κ,1)^α × max(Scr/κ,1)^-1.200 × 0.9938^age × 1.012 (if female); κ = 0.7 (F) / 0.9 (M)
New England Journal of Medicine · 2021
Demo content. Educational decision support only. Verify every dose, citation and recommendation against your national formulary and the primary source before clinical use.