Table 1.

Acute Kidney Injury Network (AKIN) acute kidney injury staging criteria [19]

	Serum creatinine (μmol/l)	Urine output (ml/kg/h)
Stage 1	> 26.4 μmol/l	< 0.5 for > 6 hours
	> 150-200% change from baseline
Stage 2	> 200-300% change from baseline	< 0.5 for > 12 hours
Stage 3	> 300% change from baseline OR > 44 μmol/l change from 354 μmol/l	< 0.3 for 24 hours or anuria for 12 hour