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. 2016 Aug 5;102(1):91–96. doi: 10.1136/archdischild-2015-309381

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The renal angina index (RAI). Patients are stratified depending on their ‘risk’ of developing acute kidney injury (AKI) and their signs of injury. There are three risk groups: moderate (paediatric intensive care admission), high (prior stem cell transplantation) and very high (ventilation and requirement for either an inotrope or vasopressor). The worse parameter between change in estimated creatinine clearance (eCCl) from baseline and percentage fluid overload (% FO) yields an injury score. The resultant RAI can range from 1 to 40. A cut-off value of ≥8 is used to determine fulfilment for ‘renal angina.’ (Adapted from Basu et al¹⁷).