Bugs and Drugs Practice Test

Question #3 explained:

Which of the following are known as “respiratory fluoroquinolones” for their ability to cover Streptococcus pneumoniae?

NOTE: Many people believe levofloxacin and moxifloxacin are labeled “respiratory fluoroquinolones” for their ability to penetrate into the lungs. This is incorrect. Ciprofloxacin, moxifloxacin and levofloxacin all achieve good lung penetration. The difference is ciprofloxacin does not have good activity against Streptococcus pneumoniae. The newer fluoroquinolone delafloxacin (Baxdela) has activity against Strep. pneumoniae.

A. Levofloxacin – CORRECT

B. Ciprofloxacin – INCORRECT

C. Moxifloxacin – CORRECT

D. Azithromycin – INCORRECT: is not a fluoroquinolone

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