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Infectious Diseases > Identification > Flashcards

Identification Flashcards

1
Q

On what agar does Strep Group B grow best?

A

Blood agar

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2
Q

On what agar does Strep pneumoniae grow best?

A

Blood agar

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3
Q

What are the growth conditions for Strep Group B?

A

C02 enriched

37 degrees Celsius

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4
Q

What are the growth conditions for Strep pneumoniae?

A

C02 enriched

37 degrees Celsius

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5
Q

On what agar does L monocytogenes grow best?

A

Blood agar

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6
Q

What are the growth conditions for L monocytogenes?

A
  • Anerobic (facultative anerobe)

37 degrees

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7
Q

On what agar types is H. meninigitidis grown best?

A

Blood agar

Chocolate agar

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8
Q

What are the growth conditions for H. meningitidis?

A

37 degrees

C02 enriched

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9
Q

On what agar type is H. influenzae grown?

A

Chocolate agar

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10
Q

What are the growth conditions for H influenzae?

A

C02 vital

37

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11
Q

What are the outcomes of the gram, cell shape, oxidase, catalase and haemolysis tests for Strep Group B?

A 
Gram = +ve
Cell shape = cocci in chains
Oxidase = -ve
Catalase = -ve
Haemolysis = beta
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12
Q

What are the outcomes of the gram, cell shape, oxidase, catalase and haemolysis tests for Strep pneumoniae?

A 
Gram = +ve
Cell shape = cocci
Oxidase = -ve
Catalase = -ve
Haemolysis = alpha
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13
Q

What are the outcomes of the gram, cell shape, oxidase, catalase and haemolysis tests for Neisseria meningitidis?

A 
Gram = -ve
Cell shape = Cocci in pairs (diplococci)
Oxidase = +ve
Catalase = +ve
Haemolysis = non-haemolytic
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14
Q

What are the outcomes of the gram, cell shape, oxidase, catalase and haemolysis tests for Haemophilis influenzae?

A 
Gram = -ve
Cell shape = Cocc-bacillus 
Oxidase = +ve
Catalase = +ve
Haemolysis = Not possible
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15
Q

What are the outcomes of the gram, cell shape, oxidase, catalase and haemolysis tests for Listeria monocytogenes?

A 
Gram = +ve
Cell shape = Bacillus
Oxidase = ?
Catalase = +ve
Haemolysis = Beta
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16
Q

Describe the sensitive of strep pneumoniae optochin and bacitracin.

A

Sensitive to both

17
Q

Is Neisseria meningitidis sensitive or resistant to vancomycin?

A

Resistant

18
Q

Describe the growth of Neisseria Meningitidis in nutrient agar.

A

Variable

19
Q

Why can’t H. influenzae undergo haemolysis?

A

It does not grow on blood agar

20
Q

What is factor V?

A

NAD

21
Q

What is factor X ?

A

Haemin

22
Q

What factors does H.influenzae require for growth?

A

V and X

23
Q

What is the selective medium for L.monocytogenes?

A

Listeria Agar

Infectious Diseases (9 decks)

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