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Fungal infections are often diagnosed by direct microscopic examination of specimens.

A) True
B) False

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The clinical microbiology laboratory can provide preliminary identification of microorganisms based on


A) microscopic examination of specimens.
B) growth or biochemical characteristics.
C) immunologic techniques that detect microbial antigens.
D) all of the choices

E) C) and D)
F) B) and C)

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Standard microbiological practices include all of the following except


A) Work space should be disinfected only when contaminating spills occur.
B) Eating,drinking,manipulation of contact lenses,and the use of cosmetics,gum,and tobacco products are strictly prohibited in the lab.
C) Lab personnel should know how to use the emergency eyewash and shower stations.
D) Hair longer than shoulder length should be tied back.

E) B) and C)
F) A) and C)

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Which of the following can be examined with an ordinary bright-field microscope?


A) Wet mounts.
B) Heat-fixed specimens.
C) Chemical-fixed specimens.
D) All of the choices.

E) A) and B)
F) All of the above

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Recommended guidelines for laboratory microbiological precautions should reflect the laboratory's ________ _________.

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Which of the following cell cultures consists of transformed cells?


A) Continuous cell cultures.
B) Semicontinuous cell cultures.
C) Primary cultures.
D) All of the choices.

E) All of the above
F) A) and B)

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Which of the following sites could be used when inoculating hen's eggs with an infectious agent?


A) The allantoic cavity.
B) The amniotic cavity.
C) The chorioallantoic membrane.
D) All of the choices.

E) None of the above
F) A) and B)

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The identification of mycoplasmas in clinical specimens can be quickly done because of their rapid growth rate in culture.

A) True
B) False

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An example of miniaturized commercial rapid bacterial identification system based on biochemical analysis is the


A) API 20E system.
B) Widal test.
C) Kirby-Bauer test.
D) all of the choices

E) None of the above
F) A) and B)

Correct Answer

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Ten percent Calcofluor White stain is often used in wet mounts of


A) bacteria.
B) parasites.
C) molds.
D) protozoa.

E) None of the above
F) B) and D)

Correct Answer

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