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A gram positive cocci is catalase positive, is negative for clumping factor, and does not produce staphylocoagulase. It would be classified as:

Observe the Hektoen plate. What information can you determine about the bacteria that the YELLOW ARROW IS POINTING AT from your observation based on what you know about HEK plates?

The average percentage of the general population who have S. aureus as normal flora in their nasopharynx (individual is considered “colonized”) is:

A BAP is observed and there is growth of a creamy golden colony on the plate. Around the colonies, the RBC’s of the medium have been lysed which causes a clear zone in the agar around the organism. The cause of this phenomenon is:

A gram positive organism retains which gram stain reagent:

A gram stain of bacteria reveals a purple circular object. Select the correct statement about the organism:

A specimen is inoculated to BAP, Columbia, MAC and HEK. After 24 hrs. incubation there is growth on the BAP and Columbia, but not the MAC or HEK. Based on this growth, you would expect the gram stain to show:

An organism appears on HEK as a clear green colony with a black dot in the middle. This indicates:

How would S. saprophyticus appear on MAC?

A media used specifically for the transport of stool specimens is: