Stage 1
- Scr up 27micromol/L OR 1.5-1.9 times from baseline
- UO <0.5mL/kg/hr for 6-12hr
Stage 2
- Scr up 2-2.9 times from baseline
- UO <0.5mL/kg/hr for >=12hr
Stage 3- Scr up 354micromol/L OR 3 times from baseline OR need RRT OR eGFR <35ml/min1.73m2- UO anuria for >=12hr