An oxidase-positive, gram-negative diplococcus produces the following reactions in a set of CTA carbohydrate tubes:
Control-red
Glucose-red
Maltose-red
Lactose-red
Sucrose-red
One would expect to isolate this organism in infections associated with all of the
Following body sites/specimen types except

Question

Quizplus · Accepted Answer

The organism described is likely Neisseria gonorrhoeae, which is an oxidase-positive, gram-negative diplococcus that does not ferment carbohydrates (as indicated by the red color in all CTA carbohydrate tubes, including the control). Neisseria gonorrhoeae is commonly associated with infections of the mucous membranes, such as the genitourinary tract, pharynx, and conjunctiva, but it is not typically found in cerebrospinal fluid unless there is a disseminated infection, making this the least expected site among the options provided.

An Oxidase-Positive, Gram-Negative Diplococcus Produces the Following Reactions in a Set