The procedure that assures the most accurate detection of mecA-mediated oxacillin resistance in routine broth microdilution susceptibility testing against S. aureus is:

A patient is seen in urgent care complaining of a terrible sore throat.  A rapid strep test is performed and found to be negative.  What is the appropriate next step?

This organism is said to have “umbrella” motility

What is the hemolysis results for Streptococcus pyogenes?

The MacConkey (MAC) plate is considered what type of media?

A light yellow colony from a skin lesion grew aerobically and tested as catalase positive and coagulase negative. The gram stain showed gram positive cocci in clusters and was modified oxidase positive, bacitracin susceptible. What is the most likely identification of this organism?

You perform a CAMP test on a beta-hemolytic organism and obtain the following result. What is the mostly likely organism?   image001638f8426.jpg

What color do gram positive organisms appear on a gram stain?

What bacterial concentration level is required to achieve a 0.5 McFarland turbidity standard?

What organism is said to look like “breadcrumbs” on the BAP and is partial acid fast positive?