Table 1 Classification/staging system for acute kidney injury
Stage | Serum creatinine criteria | Urine output criteria |
|---|---|---|
1 | Increase in serum creatinine of more than or equal to 0.3 mg/dl (≥ 26.4 μmol/l) or increase to more than or equal to 150% to 200% (1.5 to 2-fold) from baseline | Less than 0.5 ml/kg per hour for more than 6 hours |
2 | Increase in serum creatinine to more than 200% to 300% (> 2 to 3-fold) from baseline | Less than 0.5 ml/kg per hour for more than 12 hours |
3 | Increase in serum creatinine to more than 300% (> 3-fold) from baseline (or serum creatinine of more than or equal to 4.0 mg/dl (≥ 354 μmol/l) with an acute increase of at least 0.5 mg/dl (44 μmol/l)) | Less than 0.3 ml/kg per hour for 24 hours or anuria for 12 hours |