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Table 2 Diagnosis and severity criteria of AKI in paediatric patients

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

Grade Estimated plasma creatinine clearance Urine output
Risk Decrease >25 % <0.5 ml/kg/h during >8 h
Injury Decrease >50 % <0.5 ml/kg/h during >16 h
Failure Decrease >75 % or <35 ml/min/1.73 m2 <0.3 ml/kg/h during 24 h or anuria >12 h
Loss Grade «failure» persisting for >4 weeks  
End stage (chronic renal insufficiency) Grade «failure» persisting for >3 months