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Identify this parasite:   image003638f9f16.jpg

Plesiomonas shigelloides is member of the family Enterobacteriaceae. The characteristic that differentiates Plesiomonas from other members is:

A microbiologist is reading CTA sugars.  The glucose tube is the only tube that is positive.  What is the most likely organism producing this result?

MacConkey media for screening suspected E. coli O157:H7 must contain:

After eating chicken at a neighborhood BBQ, a man experiences abdominal pain, cramping, and diarrhea. He seeks help at his local hospital, where a stool culture is performed. A potential pathogen with the following gram stain is isolated. What is the most likely organism?     image001638f9f16.gif

A gram stain performed on a sinus aspirate revealed gram negative diplococci. Oxidase testing is positive and the carbohydrate testing is negative. The organism is most likely:

Proper collection of a sample for recovery of Enterobius vermicularis includes collecting:

Given the growth on the quad plate, what is the most likely organism? Question 15.jpg     

Which of the following organisms is considered pathogenic in a stool culture?

A patient with very pale patches on his arms and legs is examined at his physician’s office.  His physician orders a fungal culture.  The fungus shows a spaghetti-and-meatball appearance on the direct smear.  What organism is it?