Which of the following body fluids are considered

15. Which of the following body fluids are considered sterile?
a. Urine in the bladder
b. Sputum
c. Cerebrospinal fluid
d. Interstitial fluid
e. Blood
f. Mucus in trachea
16. Using differential media, the presence of a particular enzyme in an organism is often
visualized as a change in:
17. Which of the following are NOT phenotypic methods for direct examination of a
specimen.
18. Which three of the following are advantages to the use of rapid, miniature systems to
characterize infectious microbes?

e. They are readily adapted to analysis by computer.
19. Which type of media should be used to culture nonsterile specimens, in order to inhibit
the growth of normal biota?
a. Enriched
b. Liquid
c. Differential
d. Selective
20. ______ testing is important in determining the drugs that will be used in treatment. 21. Clinical microbiologists often obtain pure cultures of a pathogen for use in identification
procedures by utilizing sterile techniques and differential media.
22. Which of the following would NOT be clinically significant in determining the presence of
an infection?
23. Which of the following are phenotypic methods that identify microbes through
microscopic methods?
24. The physiological reactions of bacteria to nutrients and other substrates provides
indirect evidence of the types of enzymes expressed in a particular species.
25. One disadvantage of culturing techniques for diagnosis is that the results are usually not
available for ____ hours.
a. 40-48
b. 1-2
c. 18-24
26. Rapid, miniaturized systems for biochemical testing of microbes can provide which of
the following characteristics of an organism?

e. 16S rRNA sequence
f. optimal growth temperature