KDIGO AKI Staging
KDIGO AKI Staging - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
Open the KDIGO AKI Staging → Runs in your browser. No signup, no tracking.
What this is
Stage acute kidney injury per the KDIGO 2012 clinical practice guideline using the serum-creatinine criteria: Stage 1 (>=0.3 mg/dL rise in 48 h or 1.5-1.9x baseline), Stage 2 (2.0-2.9x baseline), or Stage 3 (>=3.0x baseline, creatinine >=4.0 mg/dL, or initiation of RRT). Sophie Well returns the stage along with the ratio and the absolute change so the chart note has the underlying numbers.
When to use it
Use this whenever a creatinine trends up in the inpatient or outpatient setting and you need to assign a KDIGO stage for documentation, billing, or trial enrollment. The creatinine-only path is implemented here; the parallel urine-output criterion (<0.5 mL/kg/h x 6+ h for Stage 1) requires an indwelling measurement and is typically scored separately at the bedside.
References
KDIGO Clinical Practice Guideline for Acute Kidney Injury. Kidney Int Suppl 2012;2:1-138.
Worked example: KDIGO AKI Stage 3 (3.5x baseline).
Sophie Well is a reference and educational tool. Not medical, legal, or financial advice. Does not replace clinician judgment, professional billing review, or legal counsel.