Which of the following microorganisms is the most common gram-negative bacillus to cause VAP?
A. Staphylococcus aureus
B. Candida albicans
C. Pseudomonas aeruginosa
D. Haemophilus influenzae
?ANS: C
A. Incorrect response: Staphylococcus aureus is a facultative anaerobe and an opportunistic pathogen.
B. Incorrect response: Candida albicans is a fungus.
C. Correct response: The most common gram-negative pathogen responsible for the development of VAP is the gram-negative bacillus Pseudomonas aeruginosa.
D. Incorrect response: Haemophilus influenzae is a gram-negative bacillus
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