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Table 1 KDIGO criterion for diagnosis and staging of AKI[8]

From: Actual versus ideal body weight for acute kidney injury diagnosis and classification in critically Ill patients

Stage

Serum creatinine

Urine output

1

1.5-1.9 times baseline OR 0.3 mg/dl increase

< 0.5 ml/kg/h for 6-12 hours

2

2.0-2.9 times baseline

< 0.5 ml/kg/h for ≥12 hours

3

3.0 times baseline OR Increase in serum creatinine to ≥4.0 mg/dl OR initiation of replacement therapy

< 0.3 ml/kg/h for ≥24 hours OR Anuria for ≥12 hours