Which of the following organisms have been found to colonize the oropharynx of healthy indi-viduals?
a. Coccidioides immitis
b. Haemophilus influenzae
c. Histoplasma capsulatum
d. Mycobacterium
ANS: B
In routine sputum culture, the isolation of bacteria, such as S. pneumoniae and H. influenzae, must be interpreted within the context of the Gram stain because these organisms can colonize the oropharynx, and their presence in culture may not signify true lower respiratory tract infec-tion.
Health Professions
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