Case Study 1
A 64-year old male with fever, malaise, and cough.
Nothing of clinical significance is isolated when the bronchial lavage
fluid is cultured on blood agar plates. However, the organism grows well
on charcoal yeast extract agar with blood.
Despite antimicrobial and supportive therapy, the patient subsequently
develops multiorgan failure and dies after a protracted course.
Question 4 of 6
Which organism caused this disease?
Pseudomonas aeruginosa and Escherichia coli can cause this sort of
infection, but both should grow on blood agar.
The Biology Project
University of Arizona
Tuesday, August 4, 1998
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