KDIGO Stages for Acute Kidney Injury (AKI)
The KDIGO system stages acute kidney injury by serum creatinine and urine output: Stage 1 (≥26.5 µmol/L rise OR 1.5-1.9x baseline; urine <0.5 mL/kg/h for 6-12h), Stage 2 (2.0-2.9x baseline; <0.5 mL/kg/h for ≥12h), Stage 3 (≥3.0x baseline OR ≥353.6 µmol/L OR RRT; <0.3 mL/kg/h for ≥24h or anuria for ≥12h). Guides anaesthesia management.
