NBEO Pharmacology Practice Exam

Bactrim, which is a combination of sulfamethoxazole and trimethoprim, is effective against a variety of bacteria including Escherichia coli. This medication is often used to treat urinary tract infections (UTIs) caused by E. coli, which is a common pathogen in such infections.

The mechanism of action of Bactrim involves inhibiting folate synthesis in bacteria, making it effective against those that are susceptible. E. coli has been shown to be sensitive to Bactrim in many cases, particularly in uncomplicated UTIs. Therefore, it is a relevant and correct option when considering the pathogens that Bactrim can effectively target.

In a clinical context, understanding the spectrum of activity of antimicrobials like Bactrim is crucial for effective treatment strategies. E. coli's susceptibility to this combination can significantly impact the choice of therapy for infections, especially when MRSA is also a consideration.