NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Which of the following is a pathogen for upper respiratory infections?

  1. Staphylococcus epidermidis

  2. Streptococcus pneumoniae

  3. Escherichia coli

  4. Pseudomonas aeruginosa

The correct answer is: Streptococcus pneumoniae

Staphylococcus epidermidis, Escherichia coli, and Pseudomonas aeruginosa are all types of bacteria that can cause infections, but they are not typically associated with upper respiratory infections. Staphylococcus epidermidis is usually found on the skin and Pseudomonas aeruginosa is more commonly associated with infections in hospital settings. Escherichia coli is most often associated with urinary tract infections. Streptococcus pneumoniae, on the other hand, is a common cause of upper respiratory infections such as pneumonia, sinusitis, and otitis media. It is a type of bacteria that is commonly found in the respiratory tract and can cause a range of respiratory infections. This makes it the correct answer in this scenario.

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