Estimated CrCl

Urine output

Risk

eCrCl decrease by 25%

<0.5 ml/kg/h for 8 h

Injury

eCrC decrease by 50%

<0.5 ml/kg/h for 16 h

Failure

eCrC decrease by 75% or

eCrCl < 35 ml/min/1.73 m²

<0.3 ml/kg/h for 24 h or anuric for 12 h

Loss

Persistent failure > 4 weeks

End stage

End-stage renal disease (persistent failure > 3 months)