Microbiology at Cape Peninsula University Of Technology | Flashcards & Summaries

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Lernmaterialien für microbiology an der Cape Peninsula University of Technology

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A clostridium specie that is a potential agent of bioterrorism
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C.botulinum
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Do not require atmospheric oxygen but capable of growth in oxygen and anaerobic environment 
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Facultative anaerobes
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The cytotoxin of C.difficile can be detected using a:
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TESTE DEIN WISSEN
Tissue culture assay
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TESTE DEIN WISSEN
Material for anaerobic culture is best obtained by ____ using a needle and syringe to prevent contamination with normal microbiota
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TESTE DEIN WISSEN
Either 
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TESTE DEIN WISSEN
Which of the following clinical specimens are not suitable for anaerobic culture?
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TESTE DEIN WISSEN
Rectal swab
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TESTE DEIN WISSEN
Indications that anaerobes are present, except:
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TESTE DEIN WISSEN
Pigmentation 
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TESTE DEIN WISSEN
Anaerobic organisms lack these enzymes required to breakdown reactive oxygen species produced during respiration or aerobic metabolism
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TESTE DEIN WISSEN
Both
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TESTE DEIN WISSEN
This is used to detect the presence of C.difficile when results of GDH immunoassays and toxin assays are inconclusive.
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TESTE DEIN WISSEN
Nucleic acid testing
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TESTE DEIN WISSEN
A positive gram stain with a negative culture indicates:
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TESTE DEIN WISSEN
  • Poor transport methods
  • Excessive exposure to air during specimen processing
  • Failure of the system
  • Inadequate type of media or old media
  • Killing of microorganisms hy antimicrobial therapy
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TESTE DEIN WISSEN
Safranin counterstain is left on for:
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TESTE DEIN WISSEN
3-5 minutes
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TESTE DEIN WISSEN
This stain is used as an alternative counterstain to improve the identification of gram negative anaerobes
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TESTE DEIN WISSEN
0.5% basic fuchsin
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TESTE DEIN WISSEN
These organisms are capable of growing with reduced or atmospheric oxygen but grows best under anaerobic conditions.
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TESTE DEIN WISSEN
Aerotolerant organisms (5% O2)
  • Actinomyces spp
  • Bifidobacterium spp
  • Clostridium spp
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Beispielhafte Karteikarten für deinen microbiology Kurs an der Cape Peninsula University of Technology - von Kommilitonen auf StudySmarter erstellt!

Q:
A clostridium specie that is a potential agent of bioterrorism
A:
C.botulinum
Q:
Do not require atmospheric oxygen but capable of growth in oxygen and anaerobic environment 
A:
Facultative anaerobes
Q:
The cytotoxin of C.difficile can be detected using a:
A:
Tissue culture assay
Q:
Material for anaerobic culture is best obtained by ____ using a needle and syringe to prevent contamination with normal microbiota
A:
Either 
Q:
Which of the following clinical specimens are not suitable for anaerobic culture?
A:
Rectal swab
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Q:
Indications that anaerobes are present, except:
A:
Pigmentation 
Q:
Anaerobic organisms lack these enzymes required to breakdown reactive oxygen species produced during respiration or aerobic metabolism
A:
Both
Q:
This is used to detect the presence of C.difficile when results of GDH immunoassays and toxin assays are inconclusive.
A:
Nucleic acid testing
Q:
A positive gram stain with a negative culture indicates:
A:
  • Poor transport methods
  • Excessive exposure to air during specimen processing
  • Failure of the system
  • Inadequate type of media or old media
  • Killing of microorganisms hy antimicrobial therapy
Q:
Safranin counterstain is left on for:
A:
3-5 minutes
Q:
This stain is used as an alternative counterstain to improve the identification of gram negative anaerobes
A:
0.5% basic fuchsin
Q:
These organisms are capable of growing with reduced or atmospheric oxygen but grows best under anaerobic conditions.
A:
Aerotolerant organisms (5% O2)
  • Actinomyces spp
  • Bifidobacterium spp
  • Clostridium spp
microbiology

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