⚕️ For clinical reference only. Not a substitute for professional judgment.

AKI Staging KDIGO

Acute Kidney Injury staging by KDIGO 2012 criteria — based on creatinine rise from baseline or urine output.

—

Enter creatinine values

Enter baseline and current creatinine, or select urine output criteria.

Creatinine Criteria

Baseline Cr

µmol/L

Current Cr

µmol/L

Urine Output Criteria (if creatinine unavailable)

Urine output

KDIGO Staging Criteria

Stage 1: Cr ×1.5–1.9 from baseline (within 7 days) OR rise ≥26.5 µmol/L in 48h Stage 2: Cr ×2.0–2.9 from baseline Stage 3: Cr ×3.0 from baseline OR ≥353.6 µmol/L OR RRT initiated

When to use

Any hospitalised patient with rising creatinine or oliguria
Post-operative patients, contrast-exposed, septic patients
Stage 2–3: nephrology review, stop nephrotoxins, optimise fluid balance
Stage 3: consider RRT — refer to ICU/nephrology urgently

References

KDIGO AKI Work Group. KDIGO Clinical Practice Guideline for AKI. Kidney Int Suppl. 2012;2(1):1–138.