Bugs and Drugs Practice Test

Question #6 explained

The aminopenicillins (ampicillin and amoxicillin) are widely considered the drugs of choice for which organism?

A. Corynebacterium jeikeium – INCORRECT: vancomycin is widely considered the drug of choice for this organism, but if you see it growing first rule-out contamination before looking to pick a drug for treatment

B. Listeria monocytogenes – CORRECT

C. Enterococcus faecium – CORRECT: while E. faecium is frequently resistant to both aminopenicillins and vancomycin (making it VRE), aminopenicillins are widely considered the drugs of choice for susceptible Enterococci

D. Clostridium difficile – INCORRECT: aminopenicillins have no clinical utility against this Gram positive anaerobe

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