Table 3.

pRIFLE AKI classification system

ClasseCrClUrine Output
RiskDecrease by 25%<0.5 ml/kg per h for 8 hours
InjuryDecrease by 50%<0.5 ml/kg per h for 16 hours
FailureDecrease by 75% or <35 ml/min per 1.73 m2<0.3 ml/kg per h for 24 hours or anuria for 12 hours
  • eCrCl, estimated creatinine clearance.