Certain findings can help to identify a Community-Acquired Pneumonia (CAP) caused by Methicillin-Resistant Staphylococcus Aureus (MRSA).
Clinical findings:
(1) severe pneumonia occurring during the summer
(2) young patient previously healthy
(3) skin pustules
(4) erythematous rash
(5) concurrent influenza
(6) gross hemoptysis
Imaging findings:
(1) cavitary lesion
(2) rapidly progressive pleural effusion
Laboratory findings:
(1) neutropenia
(2) sputum Gram stain with large Gram-positive cocci in groups
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Specialty: Infectious Diseases, Pulmonology