Which physical findings suggest community-acquired pneumonia (CAP)?

Updated: Oct 31, 2019
  • Author: Stephanie L Baer, MD; Chief Editor: Michael Stuart Bronze, MD  more...
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Purulent sputum is characteristic of pneumonia caused by typical bacterial community-acquired pneumonia (CAP) pathogens and is not usually a feature of pneumonia caused by atypical pathogens, with the exception of Legionnaires disease. Blood-tinged sputum may be found in patients with pneumococcal pneumonia, Klebsiella pneumonia, or Legionella pneumonia.

Rales are heard over the involved lobe or segment. Consolidation may be accompanied by an increase in tactile fremitus, bronchial breath sounds, and egophony.

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