A Physician Calls the Microbiology Department for the Results of a Lower

Multiple Choice

A physician calls the microbiology department for the results of a lower respiratory culture of a 15-year-old female with cystic fibrosis. The culture grows an oxidase-negative, motile, lysine-positive, non-lactose fermenter that presents as K/NC on TSI and an oxidase-positive, lysine-positive, non-lactose fermenter. Based on these results, you tell the physician she can potentially treat both organisms with

A) imipenem.
B) an aminoglycoside.
C) polymyxin B.
D) trimethoprim-sulfamethoxazole.