Do pretreatment blood cultures improve outcomes in patients with community-acquired pneumonia (CAP)?
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Trials have not shown improved patient outcomes directly related to obtaining blood cultures prior to initiating antibiotics in patients with CAP. (SOR B, based on large multicenter, retrospective cohort studies.) However, patients more likely to be bacteremic may benefit from blood cultures being obtained early in the course of hospitalization. (SOR C, based on expert opinion.)
Evidence Based Practice 13(7): 10-11.