Question 1

Which of the following antibiotics inhibits RNA synthesis?

Accepted Answer

A)  penicillin 
B)  erythromycin 
C)  rifampin 
D)  azithromycin

Question 2

The most common of all nosocomial infections are ________ infections.

Accepted Answer

A)  blood 
B)  reproductive tract 
C)  urinary tract 
D)  respiratory tract

Question 3

Which type of medium typically contains an indicator dye?

Accepted Answer

A)  selective but not differential 
B)  differential but not selective 
C)  both selective and differential 
D)  neither selective nor differential

Question 4

Literally hundreds of clinically useful EIAs have been developed.

Accepted Answer

A) True 
 B)False

Question 5

One advantage of the fluorescent antibodies that permits disease diagnosis long before primary isolation techniques yield results is that

Accepted Answer

A)  cross-reactions do not occur. 
B)  few controls are required. 
C)  nonspecific staining does not occur. 
D)  it may be applied directly to tissue.

Question 6

Describe mechanisms of transfer of healthcare-associated infections (HAIs).

Accepted Answer

The answer of Describe mechanisms of transfer of healthcare-associated infections...

Question 7

Methylene blue in EMB agar is selective for

Accepted Answer

A)  gram-positives. 
B)  gram-negatives. 
C)  viral plaques. 
D)  both gram-positives and gram-negatives.

Question 8

Latex bead agglutination tests are

Accepted Answer

A)  rapid and reliable tests used for the detection of certain bacteria as well as certain serum antibodies. 
B)  inferior tests used in developing countries not having facilities for more reliable assays. 
C)  an integral part of the EIA test procedure. 
D)  too expensive for routine use.

Question 9

Which of the following is a novel antimicrobial target?

Accepted Answer

A)  disruption of lipid biosynthesis 
B)  inhibition of protein synthesis 
C)  inhibition of cell wall biosynthesis 
D)  inhibition of peptidoglycan crosslinking

Question 10

The EIA test for HIV infection is a direct test for HIV envelope proteins.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is a mechanism of aminoglycosides?

Accepted Answer

A)  inhibition of cell wall biosynthesis 
B)  prevention of peptidoglycan crosslinking 
C)  inhibition of DNA replication 
D)  targeting the 30S ribosomal subunit

Question 12

One problem with the EIA test is the disposal of radioactive wastes.

Accepted Answer

A) True 
 B)False

Question 13

The use of selected culture media and incubation conditions to isolate microorganisms from samples is known as a(n)

Accepted Answer

A)  differential culture. 
B)  selective culture. 
C)  enrichment culture. 
D)  sensitive culture.

Question 14

The oxygen-free gas commonly employed during anoxic incubation of a bacterial culture is a mixture of

Accepted Answer

A)  nitrogen and carbon dioxide. 
B)  nitrogen and carbon monoxide. 
C)  nitrogen and argon. 
D)  nitrogen and hydrogen.

Question 15

Finding no bacterial growth,despite persistent urinary tract symptoms,indicates that the problem is likely either non-pathogenically physiological or psychosomatic.

Accepted Answer

A) True 
 B)False

Question 16

Chitin is found ONLY in fungi and insects.

Accepted Answer

A) True 
 B)False

Question 17

In the United States,every clinical and research institution requires that workers be protected from ________ that is contracted almost exclusively from handling patient specimens (rather than from known exposure or accidents).

Accepted Answer

A)  anthrax 
B)  hepatitis B 
C)  drug-resistant mycobacteria 
D)  influenza

Question 18

A gram-negative,oxidase-positive diplococcus growing on chocolate agar likely belongs to the genus

Accepted Answer

A)  Neisseria. 
B)  Escherichia. 
C)  Mycobacterium. 
D)  Pseudomonas.

Question 19

Which bacterium shows a characteristic green sheen when grown on eosin-methylene blue (EMB)agar?

Accepted Answer

A)  Escherichia coli 
B)  Salmonella enterica 
C)  Staphylococcus aureus 
D)  Streptococcus pyogenes

Question 20

Describe the three main components to PCR-based testing.

Accepted Answer

The answer of Describe the three main components to PCR-based...

Exam 27: Diagnostic Microbiology

Which of the following antibiotics inhibits RNA synthesis?

The most common of all nosocomial infections are ________ infections.

Which type of medium typically contains an indicator dye?

Literally hundreds of clinically useful EIAs have been developed.

One advantage of the fluorescent antibodies that permits disease diagnosis long before primary isolation techniques yield results is that

Describe mechanisms of transfer of healthcare-associated infections (HAIs).

Methylene blue in EMB agar is selective for

Latex bead agglutination tests are

Which of the following is a novel antimicrobial target?

The EIA test for HIV infection is a direct test for HIV envelope proteins.

Which of the following is a mechanism of aminoglycosides?

One problem with the EIA test is the disposal of radioactive wastes.

The use of selected culture media and incubation conditions to isolate microorganisms from samples is known as a(n)

The oxygen-free gas commonly employed during anoxic incubation of a bacterial culture is a mixture of

Finding no bacterial growth,despite persistent urinary tract symptoms,indicates that the problem is likely either non-pathogenically physiological or psychosomatic.

Chitin is found ONLY in fungi and insects.

In the United States,every clinical and research institution requires that workers be protected from ________ that is contracted almost exclusively from handling patient specimens (rather than from known exposure or accidents) .

A gram-negative,oxidase-positive diplococcus growing on chocolate agar likely belongs to the genus

Which bacterium shows a characteristic green sheen when grown on eosin-methylene blue (EMB) agar?

Describe the three main components to PCR-based testing.