ClassSerum Creatinine/ GFRUrine Output
Risk­ in Serum Creatinine x 1.5 or
GFR ¯ >25%
 <0.5 ml/kg/hr – more than 6 hours
Injury­ in Serum Creatinine x 2 or
GFR ¯ >50%
 <0.5 ml/kg/hr – more than 12 hours
Failure­ in Serum Creatinine x 3 or
creatinine > 354mmol/l with an acute rise >44mmol/l
GFR ¯ >75%
 <0.3 ml/kg/hr – more than 24 hours or anuric for 12 hours
LossPersistent acute renal failure with loss of kidney function >4 weeks
End-stage kidney diseaseESRD > 3 months

 

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