Identify the organism that is generally known to be beta lactamase (+):

Interpret the following results: BAP: small, beta-hemolytic colony MAC: no growth GS: g+c in chains Catalase: (-) Bacitracin: (+) Bile esculin: (-) The MLT should:

Select the pair of organisms which would provide appropriate positive and negative controls for the CAMP test:

Which of the following is a medium that would NOT be used for stool cultures:

A newborn has a petechial skin rash, stiff neck and fever that develops within hours after delivery. These symptoms most likely correlate with an infection due to which organism?

The most common etiologic agent of UTI is:

Which of the following statements is correct in regards to throat cultures?

(2 pts.) A gram negative diplococcus that is oxidase (+) is tested with glucose and maltose. The glucose tube appears red and the maltose tube appears red. The MLT should report:

Shiga-toxin is produced by which of the following organisms:

Zinc dust is added to the nitrate test and the result is red. This indicates: