LAB DIAGNOSIS OF ENTEROBACTERIACEAE

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8 Terms

1
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Which two agars can be used to check for Lactose fermentation?

MAC and EMB

EMB we will see GREEN METALLIC SHEEN from E.coli

2
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Which organisms do the HE, XLD, or SS agar target?

Shigella and Salmonella

3
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Which agar specifically targets Salmonella?

CHROMagar

4
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Which agar is used for the O157 H7 E. coli strain?

SMAC agar

5
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Which agar is used for Yersinia enterocolitica?

CIN agar

6
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What are the main Gram stain and morphological characteristics of Enterobacteriaceae?

GRAM NEGATIVE RODS

7
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What are the 3 main biochemical clues of Enterobacteriacea?

Oxidase NEGATIVE

Ferment GLUCOSE

Reduce Nitrate to Nitrite

8
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What kind of testing is done when an isolate can be either Salmonella or Shigella?

Serological testing, specifically O ANTIGEN


Using direct or latex agglutination