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Table 1 The KDIGO staging system for AKI

From: Applications for detection of acute kidney injury using electronic medical records and clinical information systems: workgroup statements from the 15th ADQI Consensus Conference

AKI Stage Serum creatinine criteria Urine output criteria
1 Increase > 26.4 μmol/L <0.5 mL · Kg−1 · h−1 for 6 to 12 h
or 1.5-1.9 times baseline
2 Increase 2.0 -2.9 times baseline <0.5 mL · Kg−1 · h−1 for more than 12 h
3 Increase creatinine > 354 μmol/L <0.3 mL · Kg−1 · h−1 for 24 h
or 3 times baseline
or anuria for 12 h
or initiation of RRT