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12 Cards in this Set
- Front
- Back
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What is a potential problem with identification by staining and microscopy ?
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specimen collected from patient may contain several different organisms
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The primary isolation media is often a general purpose media such as ___.
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blood agar
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What type of media is used to culture metabolically fastidious bacteria?
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enriched media
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List 5 characteristics important to bacterial identification on culture media
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size
texture color hemolytic reactions (blood agar only) required oxygen? (y/n) |
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List 2 identification kits
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API strips
BBL Enterotubes |
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Define selective media
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one in which compounds are used to selectively inhibit growth
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Define differential media
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one in which indicator dye allows identification of bacteria by thier appearance on the media
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How are pathogens tested for antibiotic sensitivity?
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the disk diffusion antibiotic susceptibility test
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In the disk diffusion antibiotic susceptibility test 'sensitive' is defined as ___
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a zone of inhibition equal to or greater than the standard threshold
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In the disk diffusion antibiotic susceptibility test 'resistant' is defined as ___
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a zone of inhibition less than the standard threshold
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What are growth-independent identification methods based on?
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The use of antibodies to recognize determinants
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What are two types of assays that are used in identification?
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agglutination assay
fluorescently-labelled antibody assay |
