NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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For which condition is Bactrim NOT commonly used?

  1. CA-MRSA skin infections

  2. UTI

  3. PCP

  4. Pseudomonal infections

The correct answer is: Pseudomonal infections

Bactrim, also known as trimethoprim/sulfamethoxazole, is a combination antibiotic commonly used for treating various infections, including community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) skin infections, urinary tract infections (UTIs), and Pneumocystis jirovecii pneumonia (PCP). However, Bactrim is not typically used for treating Pseudomonas aeruginosa infections, as this bacterium is known to have intrinsic resistance to trimethoprim/sulfamethoxazole. Therefore, the correct answer is D - Pseudomonal infections.

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