This version was machine-translated from German and has not been medically reviewed. The authoritative version is the German version.

Renal Angina Index (RAI): risk of severe kidney injury in the pediatric intensive care unit

Risk × injury (fall in creatinine clearance or fluid overload) on the day of admission, 1–40 points; from 8 there is a risk of severe AKI on day 3 (Basu 2014)

Risk (highest applicable level)
Injury: fall in estimated creatinine clearance (eCCl) from baseline
Injury: fluid overload in %

Calculation aid for healthcare professionals: the calculator reproduces what the sources cited assign to the inputs. Clinical assessment and every treatment decision remain with the treating physician. Inputs and results are not stored.

Frequently asked questions

Renal Angina Index (RAI): risk of severe kidney injury in the pediatric intensive care unit: What does this calculator compute?

The Renal Angina Index (Basu 2014, Kidney International) estimates, in children in intensive care on the day of admission, the risk of severe acute kidney injury (AKI) on day 3. Risk (1, 3 or 5 points) times injury (1, 2, 4 or 8 points, the worse value of fall in creatinine clearance and fluid overload) gives 1–40 points. From 8, renal angina is considered fulfilled. A value below 8 ruled out severe AKI well in 4 cohorts (negative predictive value 92–99 %).

Renal Angina Index (RAI): risk of severe kidney injury in the pediatric intensive care unit: Which sources is this calculator based on?

Basu RK, Zappitelli M, Brunner L, Wang Y, Wong HR, Chawla LS, Wheeler DS, Goldstein SL: Derivation and validation of the renal angina index to improve the prediction of acute kidney injury in critically ill children (Kidney Int 85:659–667) (2014)