Table 1 Definition and staging of AKI
Definition | AKI is defined as any of the following | |
1) Increase in SCr by >0.3 mg/dL within 48 h | ||
2) Increase in SCr to >1.5 times baseline, which is known or presumed to have occurred within the prior 7 days | ||
3) Urine volume <0.5 mL/kg/h for 6 h | ||
Severity | Serum creatinine | Urine output |
Stage 1 | 1.5–1.9 times baseline, or | <0.5 mL/kg/h for 6–12 h |
>0.3 mg/dL increase | ||
Stage 2 | 2.0–2.9 times baseline | <0.5 mL/kg/h for >12 h |
Stage 3 | 3.0 times baseline, or | <0.3 mL/kg/h for >24 h, or |
Increase in SCr to >4.0 mg/dL, or | Anuria for >12 h | |
Initiation of renal replacement therapy | ||