Stage 2

­ in sCr > 2.0 - 3.0 × baseline

Stage 3

­ in sCr >3.0 × baseline or

sCr ≥ 4.0 mg/dL with an acute ­ ≥ 0.5 mg/dL

or initiation of RRT

KDIGO

an acute ­ in sCr within 48 h

Stage 1

­ in sCr ≥ 1.5 - 1.9 × baseline or

­ in sCr ≥ 0.3 mg/dL

Stage 2

­ in sCr ≥ 2.0 - 2.9 × baseline

Stage 3

­ in sCr ≥ 3.0 × baseline or

sCr ≥ 4.0 mg/dL with an acute ­ ≥ 0.5 mg/dL

or initiation of RRT