What are the AKIN criteria for AKI?

AKIN (Acute Kidney Injury Network): Stage 1: Scr rise >= 0.3 mg/dL or x1.5-1.9 from baseline, or UO = 6h. Stage 2: Scr x2.0-2.9, or UO = 12h. Stage 3: Scr x3 or >= 4 mg/dL with acute rise, or RRT, or UO = 24h or anuria >= 12h.

How do AKIN and KDIGO criteria differ?

KDIGO 2012 merged RIFLE and AKIN: AKI defined as Scr rise >= 0.3 mg/dL within 48h, or x1.5 within 7 days, or UO = 6h. KDIGO staging is essentially AKIN staging with RIFLE 7-day window added.

Does AKI stage predict outcomes?

Each AKIN stage is associated with increasing in-hospital mortality: Stage 1 ~10%, Stage 2 ~15-20%, Stage 3 ~50%+. Survivors of severe AKI (Stage 3) have significantly higher long-term CKD and ESRD risk.

AKIN Acute Kidney Injury Staging Calculator

Stage acute kidney injury using AKIN criteria: Stage 1 (Cr x1.5-1.9 or +0.3 mg/dL, UO < 0.5 mL/kg/h for 6h+), Stage 2 (Cr x2-2.9, UO x12h), Stage 3 (Cr x3 or RRT, UO x24h/anuria).

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Frequently Asked Questions

What are the AKIN criteria for AKI?

How do AKIN and KDIGO criteria differ?

Does AKI stage predict outcomes?