Serum lactate as a screening tool and predictor of outcome in pediatric patients presenting to the emergency department with suspected infection.

Objectives: No single reliable sepsis biomarker exists for risk stratification and prognostication in pediatric patients presenting to the emergency department (ED). Serum lactate (LA) predicts mortality in septic adults. We sought to determine if serum LA correlated with the diagnosis of sepsis, admission rates, and outcomes in pediatric patients presenting to the ED with suspected infection.