H. influenzae can be distinguished from H. aegyptius by its _____ test for _____.
a. negative; sucrose fermentation
b. negative; lactose fermentation
c. positive; catalase
d. positive; xylose fermentation
Preferred samples for plating onto Ashdown media include throat, rectal, or sputum samples. Disease presentation can range from subclinical to disseminated disease. This infection is en-demic in Southeast Asia. Which organism is being sought?
a. B. cepacia
b. Burkholderia gladioli
c. B. mallei
d. B. pseudomallei
The sputum of a 75-year-old man with chronic lung infections yields the following: Many gram-negative coccobacilli in Gram stain X and V factors required for growth Nonhemolytic on rabbit blood agar The organism can be identified as:
a. Haemophilus aegyptius.
b. H. parainfluenzae.
c. Haemophilus haemolyticus.
d. H. influenzae.
Which of the following media provides the factors necessary for the growth of Haemophilus spp.?
a. 5 sheep blood agar
b. Brain-heart infusion agar
c. Chocolate agar
d. Nutrient agar
The most common type of infection caused by both R. radiobacter and Ochrobactrum anthropi is:
a. peritonitis.
b. endocarditis.
c. meningitis.
d. bacteremia.
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