Renal function

CKD-EPI 2021 (Cr + Cystatin C)

Combined creatinine + cystatin C equation. Recommended confirmation when eGFRcr 45-59 (CKD diagnostic uncertainty).

eGFRcystatin C

Required inputs

  • Age
  • Sex
  • Serum creatinine
  • Cystatin C (mg/L)

Equation or source

Inker LA, NEJM 2021;385:1737.

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