Category criteria | Definition |
---|---|
Risk (R) | Increased creatinine level × 1.5 or 1GFR decrease > 25% |
Injury (I) | Increased creatinine level × 2 or 1GFR decrease > 50% |
Failure (F) | Increased creatinine level × 3, 1GFR decrease > 75%, or creatinine level > 4 mg/dL |
Loss (L) | Persistent acute renal failure or loss of function for > 4 weeks |
End-Stage Kidney Disease (ESKD) (E) | ESKD for > 3 months |