Workbook in Microbiology 7e

4. Why is blood agar useful as a primary isolation medium?

5. How can one distinguish E. coli from P. aeruginosa on

Nutrient agar? _

6. What is the major difference between Modified Thayer-Martin (MTM) and chocolate agar? When would you use MTM rather than chocolate agar?

7. If you wanted to isolate S. aureus from a pus specimen containing a mixed flora, what medium would you choose to get results most rapidly? Why?

8. What is the value of making a Gram stain directly from a clinical specimen?

9. Why is aseptic technique important in the laboratory? In patient care?

Morello-Mizer-Granato: I III. Diagnostic I 7. Principles of Diagnostic I I © The McGraw-Hill

Laboratory Manual and Microbiology in Action Biology Companies, 2003 Workbook in Microbiology, 7/e

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