Your Patient Asks What Other Types of Tests Are Available

Your patient asks what other types of tests are available for identifying N. gonorrhoeae. You tell him that the organism is fastidious, oxidizes only glucose as a carbohydrate source, breaks down H2O2, exhibits cytochrome c oxidase activity, is resistant to the antibiotic colistin, and produces at least four different colony types. Based on this, which of the following would you NOT use for characterization of this pathogen?

A) Colony morphology
B) Oxidase test
C) Ability to utilize different carbohydrates
D) Catalase test
E) Growth on selective medium