Table 1.

KDIGO diagnosis and staging criteria for AKI

Stage	Serum Creatinine	Urine Output
1	1.5–1.9 times baseline or ≥0.3 mg/dL (≥26.5 μmol/L) increase	<0.5 mL/kg/h for 6–12 h
2	2.0–2.9 times baseline	<0.5 mL/kg/h for ≥12 h
3	3 times baseline or ≥4.0 mg/dL (≥353.6 μmol/L) increase or Initiation of renal-replacement therapy or Patients <18 y, decrease in estimated glomerular filtration rate <35 mL/min/1.73 m2	< 0.3 mL/kg/h for ≥24 h or Anuria ≥12 h

Data from Kellum JA, Lameire N, Group KAGW. Diagnosis, evaluation, and management of acute kidney injury: a KDIGO summary (Part 1). Crit Care. 2013;17(1):204.