Fig. 1From: External validation of the modified sepsis renal angina index for prediction of severe acute kidney injury in children with septic shockModified sepsis renal angina index. First, the RAI score is calculated as the product of the highest risk and injury strata, resulting in a score between 1 and 40. Next, the sepsis modification is applied as follows: (1) if the patient has an RAI score < 8, they are deemed low risk and not predicted to have D3 severe AKI (sRAI-, green); (2) if the patient has an RAI score ≥ 20, they are deemed high risk and predicted to have D3 severe AKI (sRAI + , red); (3) if the patient has an intermediate RAI score (8 to < 20), platelet count is considered for further risk stratification. Patients with platelet count ≥ 150 × 103/µL are deemed low risk and not predicted to have D3 severe AKI (sRAI-, green), while those with platelet count < 150 × 103/µL are deemed high risk and predicted to have D3 severe AKI (sRAI + , red). SCr > Baseline: degree of serum creatinine elevation above baseline on Day 1 of septic shock; %FB: cumulative percent fluid balance on Day 1 of septic shock; sRAI: modified sepsis renal angina index; RAI: Renal angina index; D3 severe AKI: severe acute kidney injury on Day 3 of septic shockBack to article page