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A 45-year-old white male with a history of alcohol abuse and periodontal disease is brought to the emergency room for a spiking fever and chills. Physical examination is significant for signs of lung consolidation. A chest x-ray shows a cavity in the right lower lobe that has an air/fluid level. A transtracheal aspiration is performed and the specimen is submitted to the laboratory for routine cultures and Gram's stain. Based upon the clinical presentation, which of the following would be the most likely finding?
A. Anaerobic bacteria
B. Aspergillus fumigatus
C. Entamoeba histolytica
D. Staphylococcus aureus
E. Streptococcus pyogenes
 

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Discussion Starter · #3 ·
yup correct answer is A
A. Anaerobic bacteria derived from the oral flora in the clinical setting of periodontal
disease are the most common isolates from lung abscesses. Single lung abscesses are the most common
pattern, with the superior segment of a lower lobe or the posterior segment of an upper lobe being affected
most often.
 
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