AKI staging systems Flashcards
RIFLE
RISK
creatinine: 1.5 x baseline, OR
GFR decreased by > 25%
UO < 0.5 mL/kg at least 6 hours
RIFLE
INJURY
creatinine: baseline x 2
OR
GFR decreased by > 50%
UO < 0.5 ml/kg/hr (at least 12 hours)
RIFLE
FAILURE
creatinine: baseline x 3
OR
GFR decreased by > 75%
OR
creatinine > 4.0 (with acute rise > 0.5 mg/dl)
UO < 0.3 ml/kg/hour (for at least 24 hours) OR anuria for at least 12 hours
RIFLE
LOSS
complete loss of kidney function > 4 weeks
RIFLE
ESRD
end-stage renal disease
> 3 months
AKIN 1
creatinine: baseline x 1.5-2 (within 7 days)
OR
> 0.3 mg/dl increase (within 48 hours)
UO < 0.5 mL/kg (for at least 6 hours)
AKIN 2
creatinine: 2-3 x baseline
UO < 0.5 ml/kg/hr (for at least 12 hours)
AKIN 3
creatinine: >3x baseline
OR
creatinine > 4.0 mg/dl (with acute rise >0.5 mg/dl)
OR
initiation of RRT
UO < 0.3 ml/kg/hour (for at least 24 hours) OR anuria for at least 12 hours
KDIGO 1
creatinine: 1.5-1.9 x baseline (within 7 days)
OR
> 0.3 mg/dl increase (within 48 hours)
UO < 0.5 mL/kg (at least 6 hours)
KDIGO 2
creatinine: 2.0-2.9 x baseline
UO < 0.5 ml/kg/hour for at least 12 hours
KDIGO 3
creatinine: >3x baseline
OR
creatinine > 4.0 mg/dl (with acute rise >0.3 mg/dl within 48 hours or 1.5 times baseline)
OR
initiation of RRT
UO < 0.3 ml/kg/hour (at least 24 hours) OR anuria for at least 12 hours
IRIS AKI
Grade 1
creatinine < 1.6 mg/dL
nonazotemic AKI
- documented AKI (historical, clinical, laboratory, or imaging evidence of AKI, clinical oliguria/anuria, volume responsiveness
AND/OR
- progressive nonazotemic increase in creatinine by at least 0.3 mg/dl within 48 hours
AND/OR
- measured oliguria (<1 ml/kg/hour) or anuria over 6 hours
IRIS AKI
Grade 2
creatinine 1.7-2.5 mg/dl
- documented AKI and static or progressive azotemia
AND/OR
- progressive azotemia: increase in creatinine by at least 0.3 mg/dl within 48 hours or volume responsiveness
AND/OR
- measured oliguria (<1 ml/kg/hour) or anuria over 6 hours
IRIS AKI
Grade 3
creatinine 2.6-5.0 mg/dl
moderate to severe AKI:
- documented AKI and increasing severities of azotemia and functional renal failure
IRIS AKI
Grade 4
creatinine 5.1 - 10.0 mg/dl
moderate to severe AKI:
- documented AKI and increasing severities of azotemia and functional renal failure