Table 1.

Definition and classification of acute kidney injury according to AKI-KDIGO criteria

Definition
1) CrS increase > 0.3 mg/dL in 48 hours.
2) CrS increase > 1.5 from baseline in the last 7 days.
3) Diuresis < 0.5 mL/kg/h for 6 hours.
Classification	Serum creatinine	Diuresis
Stage 1	Increased CrS > 0.3 mg/dL or CrS 1.5 - 1.9 baseline	< 0.5 mL/kg/h for 6 to 12 hours
Stage 2	CrS 2.0 - 2.9 baseline	< 0.5 mL/kg/h for > 12 hours
Stage 3	CrS 3 baseline level or need for renal replacement therapy	< 0.3 mL/kg/h for > 24 hours or anuria > 12 hours

CrS - serum creatinine.