Clinical Impact of Fast Phenotypic Antimicrobial Susceptibility Testing on Patients With Gram-Negative Rod Bacteremia

Inclusion Criteria: * Adult (≥18 years of age) hospitalized patients with positive blood culture due to gram-negative rod (on Gram stain) * Blood culture drawn in the Emergency Department (ED) Exclusion Criteria: * Patients not admitted to hospital * Patients discharged from hospital prior to blood culture positivity * Only the first positive blood culture for each patient of each hospitalization will be included during the study period; any subsequent episode of bloodstream infection (BSI) will be excluded * Positive blood culture with GNR in the prior 7 days (if known at the time of randomization) * Transferred from an outside hospital and had a history of a previously positive blood culture of the same organism in the prior 7 days (if known at the time of randomization) * GNR plus gram-positive organism, gram-negative cocci, and/or yeast detected on blood culture Gram stain * Deceased or palliative care at the time of randomization * Patient who is moribund (does not survive the initial 72 hours after enrollment)