The part of the microscope that controls the intensity of the light, controlled by a dimmer switch is the:

A patient has blood cultures ordered. They are found to be positive and, after testing, the organism is identified as Streptococcus bovis. Select the correct statement concerning this patient:

A culture is inoculated onto a BAP, MAC and HEK. After 24 hrs. of incubation the following results are observed:BAP: one organism = moist, large gray colony second organism = creamy, large white colony MAC: one pink, moist organism HEK: one orange organism with a black dot in the center Which of the following reports would be correct based on these observations?

The MLT performs a slide coagulase test. The result is positive. Identify the next course of action for the MLT:

Observe the MUG test (sample to the RIGHT). How would this MUG test be resulted? Name the organism that could give this result.

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?