Which of the following organisms has/have been associated with health care–associated infec-tions in patients using a poorly disinfected bronchoscope?
1. M. tuberculosis
2. Pseudomonas aeruginosa
3. Klebsiella
a. 1 and 3 only
b. 2 and 3only
c. 2 only
d. 1, 2, and 3
ANS: A
Health care–associated infections associated with bronchoscopes have been most commonly re-ported with M. tuberculosis, nontuberculosis mycobacterium, and P. aeruginosa.
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