RIFLE Criteria for Acute Kidney Injury (AKI)
Classifies AKI severity using creatinine or GFR change and urine output criteria.
End stage renal disease
On dialysis for >3 months
Persistent acute kidney injury
On renal replacement therapy for >4 weeks
Serum creatinine
GFR
Urine output
Answer the first question.
RIFLE Classification
RIFLE Criteria
Serum creatinine
GFR
Urine output
Risk, RIFLE-R
1.5-2x above baseline
>25% decrease below baseline
<0.5 mL/kg/hr x 6 hr
Injury, RIFLE-I
>2-3x above baseline
>50% decrease below baseline
<0.5 mL/kg/hr x 12 hr
Failure, RIFLE-F (RIFLE-FO if oliguria)
>3x above baseline, ≥4 mg/dL (350 micromol/L), or acute rise ≥0.5 mg/dL (44 micromol/L)
>75% decrease below baseline
<0.3 mL/kg/hr x 24 hr (oliguria) or anuria x 12 hr
Loss, RIFLE-L
Persistent AKI (on renal replacement therapy for >4 weeks)
ESRD, RIFLE-E
End stage renal disease (on dialysis for >3 months)