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Table 1 Classification of AKI according to the KDIGO criteria [1]

From: Acute kidney injury in the perioperative period and in intensive care units (excluding renal replacement therapies)

Stage Serum creatinine Urine output
1 ≥26.5 μmol/l or 1.5–1.9 times baseline serum creatinine level <0.5 ml/kg/h for 6–12 h
2 2.0–2.9 times baseline serum creatinine level <0.5 ml/kg/h for ≥12 h
3 3.0 times baseline serum creatinine level ou serum creatinine ≥354 µmol/l or initiation of renal replacement therapy <0.3 ml/kg/h for ≥24 h or anuria for ≥12 h
  1. The stage is determined by the worse of either the “serum creatinine” or “urine output” criteria
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