Question 1

MacConkey agar serves which purpose when used in the bacterial fecal culture?

Accepted Answer

A)  Evaluation of general flora and predominant species
B)  Selection of enteric pathogens such as Salmonella, Aeromonas, and others
C)  Inhibition of normal flora and select for enteric pathogens
D)  Enrichment for enteric pathogens such as Salmonella and othersE) C) and D)
F) B) and C) B

Question 2

Stool received for routine culture in most clinical laboratories in the United States should be examined for the presence of at least

Accepted Answer

A)  Campylobacter, Salmonella, and Shigella spp.
B)  Salmonella and Shigella spp.
C)  Campylobacter and Vibrio.
D)  Salmonella, Shigella, and Vibrio.E) None of the above
F) B) and D)

Question 3

XLD agar serves which purpose when used in the bacterial fecal culture?

Accepted Answer

A)  Evaluation of general flora and predominant species
B)  Selection of enteric pathogens such as Salmonella, Aeromonas, and others
C)  Inhibition of normal flora and select for enteric pathogens
D)  Enrichment for enteric pathogens such as Salmonella and othersE) A) and B)
F) B) and D)

Question 4

GN Broth serves which purpose when used in the bacterial fecal culture?

Accepted Answer

A)  Evaluation of general flora and predominant species
B)  Selection of enteric pathogens such as Salmonella, Aeromonas, and others
C)  Inhibition of normal flora and select for enteric pathogens
D)  Enrichment for enteric pathogens such as Salmonella and othersE) None of the above
F) C) and D)

Question 5

The transport medium that best preserves the viability of most intestinal bacterial pathogens is

Accepted Answer

A)  buffered glycerol.
B)  a rectal culture swab.
C)  Cary-Blair.
D)  Campy-thioglycollate broth.E) None of the above
F) A) and D) C

Question 6

The normal flora of the adult large bowel consists predominantly of

Accepted Answer

A)  anaerobic species.
B)  Staphylococcus.
C)  Enterococcus.
D)  Enterobacteriaceae.E) All of the above
F) C) and D)

Question 7

Sheep blood agar serves which purpose when used in the bacterial fecal culture?

Accepted Answer

A)  Evaluation of general flora and predominant species
B)  Selection of enteric pathogens such as Salmonella, Aeromonas, and others
C)  Inhibition of normal flora and select for enteric pathogens
D)  Enrichment for enteric pathogens such as Salmonella and othersE) A) and D)
F) None of the above

Question 8

Cultures for isolation of Campylobacter jejuni and Campylobacter coli should be

Accepted Answer

A)  incubated in a capnophilic atmosphere at 42° C and examined at 24 and 48 hours.
B)  incubated in a microaerophilic atmosphere at 35° C and examined at 24 and 48 hours.
C)  incubated in regular room air at 35° C and examined at 48 and 72 hours.
D)  incubated in a microaerophilic atmosphere at 42° C and examined at 24 and 48 hours.E) A) and B)
F) A) and C)

Question 9

Campy-thioglycollate broth serves which purpose when used in the bacterial fecal culture?

Accepted Answer

A)  Evaluation of general flora and predominant species
B)  Selection of enteric pathogens such as Salmonella, Aeromonas, and others
C)  Inhibition of normal flora and select for enteric pathogens
D)  Enrichment for enteric pathogens such as Salmonella and othersE) A) and B)
F) None of the above

Question 10

Selenite broth serves which purpose when used in the bacterial fecal culture?

Accepted Answer

A)  Evaluation of general flora and predominant species
B)  Selection of enteric pathogens such as Salmonella, Aeromonas, and others
C)  Inhibition of normal flora and select for enteric pathogens
D)  Enrichment for enteric pathogens such as Salmonella and othersE) A) and B)
F) A) and C) D

Exam 56: Gastrointestinal Tract Infections

MacConkey agar serves which purpose when used in the bacterial fecal culture?

Correct Answer
verified
B

Stool received for routine culture in most clinical laboratories in the United States should be examined for the presence of at least

Correct Answer
verified

XLD agar serves which purpose when used in the bacterial fecal culture?

Correct Answer
verified

GN Broth serves which purpose when used in the bacterial fecal culture?

Correct Answer
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The transport medium that best preserves the viability of most intestinal bacterial pathogens is

Correct Answer
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C

The normal flora of the adult large bowel consists predominantly of

Correct Answer
verified

Sheep blood agar serves which purpose when used in the bacterial fecal culture?

Correct Answer
verified

Cultures for isolation of Campylobacter jejuni and Campylobacter coli should be

Correct Answer
verified

Campy-thioglycollate broth serves which purpose when used in the bacterial fecal culture?

Correct Answer
verified

Selenite broth serves which purpose when used in the bacterial fecal culture?

Correct Answer
verified
D

Exam 56: Gastrointestinal Tract Infections

MacConkey agar serves which purpose when used in the bacterial fecal culture?

Correct AnswerverifiedB

Stool received for routine culture in most clinical laboratories in the United States should be examined for the presence of at least

Correct AnswerverifiedShow Answer

XLD agar serves which purpose when used in the bacterial fecal culture?

Correct AnswerverifiedShow Answer

GN Broth serves which purpose when used in the bacterial fecal culture?

Correct AnswerverifiedShow Answer

The transport medium that best preserves the viability of most intestinal bacterial pathogens is

Correct AnswerverifiedC

The normal flora of the adult large bowel consists predominantly of

Correct AnswerverifiedShow Answer

Sheep blood agar serves which purpose when used in the bacterial fecal culture?

Correct AnswerverifiedShow Answer

Cultures for isolation of Campylobacter jejuni and Campylobacter coli should be

Correct AnswerverifiedShow Answer

Campy-thioglycollate broth serves which purpose when used in the bacterial fecal culture?

Correct AnswerverifiedShow Answer

Selenite broth serves which purpose when used in the bacterial fecal culture?

Correct AnswerverifiedD

Correct Answer
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B

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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C

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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D