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Table 1 Definition of early and late renal replacement therapy

From: Timing of renal replacement therapy and long-term risk of chronic kidney disease and death in intensive care patients with acute kidney injury

Group KDIGO stage Creatinine Urine output
Early RRT   Patients not meeting AKI criteria
1 1.5–1.9 times baseline or ≥ 26.5 μmol/L (0.3 mg/dl) increase in creatinine within 48 h <0.5 ml/kg/h for 6–12 h
2 2.0–2.9 times baseline <0.5 ml/kg/h for > 12 h
Late RRT 3 3.0 times baseline or creatinine ≥ 354 μmol/L (4.0 mg/dl)a <0.3 ml/kg/h for > 24 h or anuria for ≥ 12 h
  1. Abbreviations: AKI Acute kidney injury, KDIGO Kidney Disease: Improving Global Outcomes, RRT Renal replacement therapy
  2. aSatisfies AKI criteria as well