The table below shows the RIFLE (Risk Injury Failure Loss End stage) classification scheme for acute kidney injury.
This system has a separate criteria for creatinine and urine output. If the patient’s condition falls under two different levels, then the worse classification should be used.
RIFLE-FC = denotes ‘acute-on-chronic’ disease.
RIFLE-FO = when RIFLE-F classification is reached by urine output criteria only
Checklist: AKI work-up
- Urinary sediment
- exclude obstruction
- review of meds
- rhabdomyolysis: creatine kinas, free myoglobin
- vasculitis: CXR, blood smear, measurement of nonspecific inflammatory markers, specific antibodies (anti-GBM, ANCA, anti-DNA, anti-smooth muscle)
- TTP: LDH, haptoglobin, unconjugated bilirubin, free hemoglobin
- Bence-Jones proteins
- Renal biopsy
Bersten, Andrew D, and Neil Soni. Oh’s Intensive Care Manual. London: Elsevier Health Sciences UK, 2013. Print.