Validation of a Novel, Rapid Sepsis Diagnostic for Emergency Department Use.

Objectives: To assess the in vitro IntelliSep test, a microfluidic assay that quantifies the state of immune activation by evaluating the biophysical properties of leukocytes, as a rapid diagnostic for sepsis.

Design: Prospective cohort study.

Setting: Five emergency departments (EDs) in Louisiana, Missouri, North Carolina, and Washington.