Table 1 KDIGO definition and staging of Acute Kidney Injury

Stage 1

Increase in Scr of 1.5 to 1.99 times baseline OR ≥ 0.3 mg/dl (≥26.5 μmol/l) increase.

Stage 2

Increase of between 2 and 2.99 times baseline

Stage 3

Increase of 3 times or more baseline OR increase in Scr to ≥ 4.0 mg/dl (≥353.6 μmol/l) after previous stage 1 OR initiation of renal replacement therapy (a retrospective staging).