Table 1.

KDIGO staging of Acute Kidney Injury

Stage	Serum creatinine	Urine output
1	1.5–1.9 times baseline or ≥ 0.3 mg.dL increase	< 0.5 ml/kg.hr for 6–10 h
2	2.0–2.9 mg/dL times baseline	< 0.5 ml/kg.hr for ≥ h
3	3 times baseline or ≥ 4.0 mg/dL increase or initiation of RRT or in patients < 18 years a decrease in eGFR < 35 mL/min/1.73 m2	< 0.3 ml/kg.hr for ≥ 24 h or anuria for ≥ 12 h

Abbreviations: eGFR, estimated glomerular filtration rate; RRT, renal replacement therapy.

Reprinted from Kidney International Supplements, Volume 2, Issue 2, Section 2: AKI Definition, Page 8. Copyright 2012. With permission from Elsevier.