Select the true statement about Streptolysin S:

On MSA, Staphylococcus hyicus would appear:

Which of the following organisms would it be most appropriate to perform the Bacitracin test on:

After 24 hrs. of incubation a culture grows a small translucent colony with beta hemolysis. The gram stain results are as follows:        Negative control: g-b        Positive control: g+c        Unknown organism: g+c The catalase test is negative on the unknown colony. Five days later the gram stain is repeated with the following results:       Negative control: g-b       Positive control: g+c       Unknown organism: g-c Explain these results.

State the criteria that must be met on observation of the gram stain for a sputum specimen to be considered acceptable for culture. What is this criteria referred to as?

Observe the bacitracin (A disk) test result and state the result. Name an organism that could give this result.

View the results of the TSI. How would you report this result? Name an organism that could give this result. What sugars, if any, are utilized by the organism? (Bubble present)

The etiologic agent of Lymphogranuloma venereum is:

After 24 hrs. incubation, a BE appears black and 6.5% NaCl appears clear. The MLT should report:

A rapid antigen detection test (RADT) for Group A Strep is performed on a throat culture of a 3 y/o female. The test results are negative. The controls were appropriate. The best course of action following this result is: