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12. What is the purpose of making cuts in the sheep blood agar when a throat culture is plated? To count the colonies growing after incubation To observe the appearance of any hemolysis present To determine whether the organism is lactose positive or negative To note the morphologic appearance of the colony growth

12. What is the purpose of making cuts in the sheep blood agar when a throat culture is plated? To count the colonies growing after incubation To observe the appearance of any hemolysis present To determine whether the organism is lactose positive or negative To note the morphologic appearance of the colony growth

20.  A reliable test for distinguishing Staphylococcus aureus from other staphylococci is    oxidase   coagluase  catalase   optochin susceptiblity 

Legionnaire’s disease is primarily a ___ infection.

2. Which of the following sugars is NOT included in TSI medium?

8.Upon review of a sputum Gram’s stain, the CLT notes that the nuclei of all of the neutrophils present in the smear are staining dark blue.  The best explanation for this finding is:   The slide was inadequately decolorized with acetone/alcohol. The sputum smear was prepared too thin. The cellular components have stained as expected. The iodine was omitted from the staining procedure.

19. Beta-hemolytic streptococci, not of group A or B, usually exhibit which of the following reactions?                                                                         Trimethoprim-                         Bacitracin                               sulfamethoxazole susceptible                               resistant      resistant                                   resistant       resistant                                   susceptible        susceptible                               indeterminant

20.  A reliable test for distinguishing Staphylococcus aureus from other staphylococci is    oxidase   coagluase  catalase   optochin susceptiblity 

The organism that causes the pneumonic/ bubonic plague is _________.

47. The most common normal flora organisms of the upper respiratory tract are _____. 1. Lactobacillus species 2. Staphylococcus aureus 3. Propionibacterium species 4. Viridans streptococci