Author Question: An oxidase negative, non-lactose fermenter isolated from the stool culture of a 3-year-old female ... (Read 739 times)

armygirl · **on:** Jun 25, 2018

An oxidase negative, non-lactose fermenter isolated from the stool culture of a 3-year-old female with bloody diarrhea. The organism proves to be:

TSI: red/yellow PAD: no color change
Urea: no color change VP: no color change
Motility: clear, distinct stab line Indole: no color change
If it serotypes as a group D, you would identify the organism as
A) Salmonella typhi.
B) Shigella sonnei.
C) Shigella dysenteriae.
D) The serotype must be repeated after boiling the organism suspension.

Question 2

Which test(s) differentiate Neisseria gonorrhoeae and N. cinerea?

A) Nitrate reduction B) Rapid glucose positive
C) Polysaccharide from sucrose D) A and B