For the diagnosis and management of community-acquired pneumonia, the routine gram staining and culture of expectorated sputum is a hallowed, time-honored tradition of dubious value. The overall recent trend has been, finally, to relegate this sacred cow of a test to the quaint pastures of history, but some steadfastly cling, with purple-stained fingers, to the hope that expectorated sputum analysis, as it is currently applied, can somehow reliably improve clinical decisions when managing patients with community-acquired pneumonia. The usefulness of this test in the management of community-acquired pneumonia has never been convincingly demonstrated in a clinical setting, and today the article García-Vázquez and colleagues1 again underscore that point.
Madison JM, Irwin RS. Expectorated Sputum for Community-Acquired Pneumonia: A Sacred Cow. Arch Intern Med. 2004;164(16):1725–1727. doi:10.1001/archinte.164.16.1725
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