Table 1 Staging of AKI (KDIGO)

1

1.5–1.9 times baseline or ≥0.3 mg/dl (≥26.5 μmol/l) increase

<0.5 ml/kg/h for 6–12 h

2

2.0–2.9 times baseline

<0.5 ml/kg/h for ≥12 h

3

3.0 times baseline or increase in serum creatinine to ≥4.0 mg/dl (≥353.6 μmol/l) or initiation of renal replacement therapy or in patients <18 years, decrease in eGFR to <35 ml/min per 1.73 m²

<0.3 ml/kg/h for ≥24 h or anuria for ≥12 h