Select the organism that exhibits bipolar staining on the gram stain, said to resemble a safety pin:

Identify the medium used for the citrate test:

Choose the organism that is normal flora in the bowel but can cause a diarrheal illness after a heavy antibiotic regimen:

Choose the statement that is true concerning the K antigen:

A colony with a green metallic sheen is observed on EMB. The most likely organism is:

If an organism has a TSI result of A/A+. How would this same organism appear on HEK?

Identify the media combination that would be used for set-up of a CSF culture:

Identify the CSF pathogen that is associated with eating undercooked meat, organ transplants & contact with cats:

What is a good example of a question measuring face validity if I were trying to measure someone’s job satisfaction:

An organism was inoculated to a TSI tube and gave the following reactions: alkaline slant/acid butt, H2S produced, gas produced The organism is most likely: