↑ Scr ≥ 0.3 mg/dL within 48 hr;
↑ Scr ≥ 1.5 times from baseline in 7 days;
↓ urine vol < 0.5 mL/kg/hr > 6 hr;
Rifle criteria
Risk - ↑ 1.5 Scr from baseline
Injury - ↑ 2.0 Scr from baseline
Failure - ↑ 3.0 Scr from baseline