eGFR (CKD-EPI 2021, creatinine)

Race-free CKD-EPI 2021 estimated GFR from serum creatinine, age, and sex.

Previewv0.1.0 · Pending clinical review

Inputs

0 of 3
SexUsed by the equation
years
Stable value
When to use
  • Staging chronic kidney disease in adults.
  • Drug dosing when the label references eGFR or institutional policy prefers it.
Pearls and pitfalls
  • Indexed to 1.73 m²; de-index (× BSA ÷ 1.73) for drug dosing in very large or small patients.
  • Not valid in unstable kidney function.
  • Many drug labels used Cockcroft–Gault CrCl; check which the label used.
Why use

The current KDIGO-endorsed, race-free equation.

eGFR=142×min(SCrκ,1)α×max(SCrκ,1)−1.200×0.9938Age×F
where
SCr
Serum creatinine, mg/dL
κ
0.7 (female) or 0.9 (male)
α
−0.241 (female) or −0.302 (male)
Age
Years
F
1.012 if female, 1 if male

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