State the positive and negative control organisms that would be used for the following tests: Bile esculin CAMP Oxidase Optichin

Observe the CTA sugars and interpret the results. Name a species of Neisseria that could give these results.

After 24 hrs. of incubation, the 6.5% NaCl test appears cloudy and the BE test appears black. The Optochin test reveals alpha hemolytic growth up to the disk. From the list below select the most likely organism:

Members of the family Enterbacteriaceae share which of the following characteristics?

In order to isolate Campylobacter jejuni, the fecal specimen should be:

A purple color is observed in the butt of an LIA after 24-hours incubation. This would indicate:

The ONPG test allows organisms to be classified as dLFs by testing for which of the following?

A urine culture is set up from a clean catch urine specimen using a 0.01 ml loop. After 24 hours of incubation the BAP has 247 colonies of a grey, moist organism and 50 colonies of a white beta hemolytic organism. The EMB plate has 200 colonies of a pink organism. The UA results were: Nitrite (+), WBC: 20-30/field (increased), 0-5 epi’s/field (normal). Does the patient have a UTI?If so, how many pathogens are most likely present and what do you know about the pathogens based on their growth on each plate? If there is an infection present, what would the colony count be reported as for each organism (if there is more than one pathogen present, report for each organism)?

Motility would be best determined by using which of the following tests:

Identify the test that must be performed prior to performing a battery of biochemical tests to determine if a gnr is in the family Enterobacteriaceae: