08-04-2006, 12:45 PM
A 23-year-old woman with a history of sickle cell disease presents with
fever and severe bone pain localized to her left tibia. X-ray reveals a
lytic lesion and blood cultures reveal infection. A bone culture grows
gram-negative rods. Which of the following best describes the infecting
organism?
A. It is a facultative intracellular parasite
B. It is a nonmotile facultative anaerobe
C. It is comma-shaped and sensitive to acidic pH
D. It is motile and does not ferment lactose
E. It is motile and oxidase positive
fever and severe bone pain localized to her left tibia. X-ray reveals a
lytic lesion and blood cultures reveal infection. A bone culture grows
gram-negative rods. Which of the following best describes the infecting
organism?
A. It is a facultative intracellular parasite
B. It is a nonmotile facultative anaerobe
C. It is comma-shaped and sensitive to acidic pH
D. It is motile and does not ferment lactose
E. It is motile and oxidase positive