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Table 1 Criteria used to detect incident AKI and allocate an alert stage

From: Using a linked database for epidemiology across the primary and secondary care divide: acute kidney injury

AKI Alert Stage Calculation Criteria
AKI 1 (Low RVR) Higher RVR < 1.5 and rise in SCr value of >26 μmol/L within preceding 48 h
AKI 1 (High RVR) Higher RVR ≥ 1.5 and <2
AKI 2 Higher RVR ≥ 2 and <3
AKI 3 Higher RVR ≥ 3 Or higher RVR ≥ 1.5 and SCr ≥ 354 μmol/L