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Microbiology, Fifth Edition
Microbiology, 5/e
Lansing M Prescott, Augustana College
Donald A Klein, Colorado State University
John P Harley, Eastern Kentucky University
Clinical Microbiology

Multiple Choice Quiz

Choose the best answer



1

Which of the following represents a molecular method of testing?
A)Microscopy
B)Differential media
C)Selective media
D)Plasmid fingerprinting
E)Bacteriophage typing
2

The clinical microbiologist identifies agents and organisms based on which of the following?
A)Morphological properties
B)Biochemical properties
C)Immunological properties
D)Molecular properties
E)All of the above
3

Which medium allows for the detection of various morphological or biochemical properties?
A)Characteristic
B)Differential
C)Enrichment
D)Selective
E)All of the above
4

The clinical microbiology laboratory is concerned with
A)isolation of the organism.
B)identification of the organism.
C)antimicrobial testing.
D)All of the above.
E)None of the above.
5

Which of the following refers to specific procedures used to prevent unwanted microorganisms from contaminating the clinical specimen?
A)Aseptic technique
B)Needle aspiration
C)Intubation
D)Catheterization
E)Disinfectant technique
6

Which of the following would be used to collect urine specimens over a prolonged period?
A)Hard catheter
B)Soft catheter
C)Italian catheter
D)Foley catheter
7

When cleaning a spill of blood or blood-containing fluids, a bleach solution should be used as follows:
A)1/100 dilution for smooth surfaces
B)1/10 dilution for porous surface
C)solution should be no more than 24 hours old
D)with disposable toweling
E)all of the above
8

The most common method used for the collection of urine is
A)the clean-catch method
B)with hard catheter
C)with soft catheter
D)with French catheter
E)with Foley catheter
9

Which is the most common specimen collected in suspected cases of lower respiratory infections?
A)Saliva
B)Breath
C)Sputum
D)Any of the above
E)None of the above
10

Which is the LEAST satisfactory for anaerobic specimen collection or transport?
A)Aspirates
B)Swabs
C)Tissues
D)Capped syringes
E)Anaerobic transport vial
11

Which of the following identification tests is restricted to research settings and the Centers For Disease Control and Prevention (CDC)?
A)Microscopic examination of specimens
B)Study of the growth and biochemical properties of isolated microorganisms
C)Immunological tests that detect antibodies or microbial antigens
D)Bacteriophage typing
E)Molecular methods
12

The Gram stain and acid-fast stain are based on chemical properties of the
A)plasma membrane.
B)outer membrane.
C)cell walls.
D)periplasmic space.
E)All of the above.
13

Which of the following CANNOT be used to identify a virus?
A)Cell culture
B)Gram stain
C)Radioimmunoassay
D)Enzyme immunoassay
E)Latex agglutination
14

A clinical microbiologist would be looking for evidence of a _______ infection if he or she were doing a microscopic examination for the presence of eggs, cysts, or larvae.
A)Bacterial
B)Viral
C)Fungal
D)Parasitic
E)Any
15

Morphological studies examining the pseudo hypha or chlamydospores are for detection of
A)bacteria.
B)viruses.
C)fungi.
D)parasites.
16

Which of the following inhibits the growth of Gram negative bacteria?
A)Eosin methylene blue agar
B)MacConkey agar
C)Hektoen enteric agar
D)All of the above
E)None of the above
17

Which of the following have characteristic intracellular inclusion bodies?
A)Candida
B)Chlamydia
C)Escherichia
D)Mycoplasma
E)Rickettsia
18

There has been a shift from the multistep methods previously used to systems that incorporate
A)miniaturization.
B)mechanization.
C)automation.
D)All of the above.
E)None of the above.
19

The API 20E system for the identification of members of the family Enerobacteriacae involves a series of
A)microscopic analyses.
B)biochemical tests.
C)immunological tests.
D)genomic tests.
E)antibiotic sensitivity tests.
20

A phagovar is
A)a lawn of cells on a plate.
B)strains having the same phage sensitivity.
C)a variety of phage.
D)a test that identifies a phage.
E)a phage that is capable of varying its “identity”.
21

To determine fatty acid composition, which of the following tests would be performed?
A)Ribotyping
B)Fingerprinting
C)DNA probing
D)Gas-liquid chromatography
E)Immunoassay
22

Which has often been demonstrated to be the most accurate method for identification?
A)Antibiotic resistance patterns
B)Biotyping
C)Phage typing
D)Plasmid fingerprinting
E)Serotyping








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