NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Study for the NAPLEX exam with a comprehensive quiz featuring multiple-choice questions and in-depth explanations. Build your pharmacological knowledge and increase your chances of passing the pharmacist licensure examination!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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Which antibiotic is not appropriate for treating VRE (E. faecium)?

  1. Doxycycline

  2. Quinupristin/Dalfopristin

  3. Daptomycin

  4. Tigecycline

The correct answer is: Doxycycline

Vancomycin-resistant enterococci (VRE), specifically Enterococcus faecium, are known for their resistance to various antibiotics, including vancomycin. Doxycycline (Choice A) is not a suitable option for treating VRE. Doxycycline is a tetracycline antibiotic that is not effective against VRE due to the resistance mechanisms of these bacteria. Quinupristin/Dalfopristin (Choice B), Daptomycin (Choice C), and Tigecycline (Choice D) are all antibiotics that can be considered for treating VRE infections. Quinupristin/Dalfopristin is a streptogramin combination antibiotic, Daptomycin is a cyclic lipopeptide antibiotic, and Tigecycline is a glycylcycline antibiotic. These antibiotics may exhibit effectiveness against VRE strains where other traditional agents like doxycycline fail. Therefore, in the context of treating VRE infections caused specifically by E. faecium, doxycycline is not the appropriate choice, making it the correct answer in this scenario.