A bronchoscopy was performed on a patient who later developed a nosocomial infection as a result of the procedure. The organism recovered from his lung was a nonlactose fermenter that oxidized glucose and maltose, was lysine decarboxylase–positive, and was motile. The organism is most likely which one of the following?

a. Bordetella parapertussis
b. Saccharolytic Acinetobacter
c. P. luteola
d. S. maltophilia


D
Most infections of S. maltophilia are nosocomial; S. maltophilia is also the only organism in Table 21-4 that is lysine decarboxylase–positive.

Biology & Microbiology

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