In a clinical specimen, sulfur granules strongly indicate the presence of which anaerobe?
a. Actinomyces spp.
b. Bacteroides spp.
c. Prevotella spp.
d. Clostridia spp.
Which nonlactose-fermenting organism, that rarely causes human infection, grows poorly at 35C; however, grows optimally between 20C and 25C?
a. Psychrobacter pulmonis
b. A. xylosoxidans
c. R. radiobacter
d. S. putrefaciens
Which of the following statements best describes the habitats of Vibrio spp., Aeromonas spp., Plesiomonas shigelloides, and Chromobacterium violaceum?
a. Habitats are limited to the upper respira-tory tract of various mammals.
b. Habitats are limited to the gastrointestinal tract.
c. Habitats are mostly soil and water envi-ronment.
d. Habitats are limited mostly to soil.
Percutaneous lung aspirate is:
a. acceptable.
b. not acceptable.
Which of the following statements best describes the habitats of Achromobacter, Alcaligenes, and Bordetella?
a. The habitats are limited to the upper res-piratory tract of various mammals.
b. The habitats vary from the soil and water environment to the upper respiratory tract of various mammals.
c. The habitats are limited to the soil and water environment.
d. The habitats are limited to the mucous membranes of humans and animals.
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