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Unit 3 Micro and Immunology > Cocci > Flashcards

Cocci Flashcards

1
Q

Is group A Strep gram - or gram +

A

Gram +

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2
Q

What type of hemolysis does Group A strep exhibit?

A

Beta hemolysis

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3
Q

Is Group A strep sensitive to bacatracin?

A

Yes

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4
Q

Is there lancefield testing for Group A strep?

A

Yes

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5
Q

Is Group A strep Catalase negative or positive?

A

negative

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6
Q

What are the virulence factors of Group A strep?

A

1- Pili
2-M protein
3- Toxins

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7
Q

How is Group A strep treated?

A

penicillin and erythromycin

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8
Q

Which bacteria is associated with post steptococcal infections?

A

Group A strep

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9
Q

What is an example of Group B strep?

A

S. agalactinae

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10
Q

What are the lab properties of Group B strep?

A 
Gram +
Catalase negative
beta hemolytic
resistant to bacitracin
lancefield stereotyping
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11
Q

What is the major diagnostic difference between Group A strep and Group B strep?

A

Group A is susceptible to bacitracin and Group B isnt

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12
Q

What bacteria is the CAMP test used for?

A

group B strep and S. aureaus synergy

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13
Q

What type of bacteria do females carry in their GU track?

A

Group B strep

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14
Q

How are women with GU group B strep treated?

A

With penicillin before the baby is born

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15
Q

What are the virulence factors of group B strep?

A

capsule that prevents phagocytosis

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16
Q

What are the lab properties of S. Pneumonia?

A 
Gram +
Catalase negative
alpha hemolytic
bile/optochin sensitive
no lancefield stereotyping
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17
Q

What is the virulence factor of S. pneumonia?

A

capsule

18
Q

How is s. Pneumonia treated and prevented?

A

Treated by penicillin and cephalosporin. Prevention is polyvalent vaccine

19
Q

Is S. viridans sensitive to bile/ optochin sensitive or resistant?

A

resistant

20
Q

Is S. viridans alpha or beta hemolytic?

A

alpha

21
Q

Which bacteria uses sugar metabolizing enzymes as a virulence vactor?

A

S. viridans

22
Q

Where is S. viridans typically found?

A

the mouth

23
Q

What type of bacteria is S. facalis?

A

enterococci

24
Q

What are the lab properteis of S. facalis?

A

Gram +
Catalase neg
Gamma hemolytic
resitant to bile/ optochin

25
Q

Where is S. facalis usually found?

A

The colon

26
Q

Is S. Aureus gram + or gram -?

A

gram +

27
Q

Which bacteria is resistant to salt?

A

S. aureus

28
Q

What are the virulence factors of S. aureus?

A

Protein A
Capsule
Coagulase
Toxins

29
Q

What are S. aureus’ response to catalase, coagulation, and hemolytic?

A

catalase +, coagulase +, beta hemolytic

30
Q

What is complicating about the treatment for S. aureus?

A

If has multi drug resistance on a plasmid

31
Q

Where is S. epidermidis typically found?

A

the skin

32
Q

What are the hemolytic properties of S. saprophyticus?

A

non hemplytic

33
Q

What are the lab properties of N. meningitides?

A

Gram -
Maltose ferment +
multiple serotypes

34
Q

What are the virulence factors of N. meningitides?

A

capsule

LPS toxin

35
Q

Does N. gonhorrhoeae ferment maltose?

A

no

36
Q

Which bacteria has pili and LOS as virulence factors?

A

N. gohnorrheoeae

37
Q

Where does N.gohnorrhoeae typically infect?

A

the GU tract

38
Q

Is peptostreptococcis alpha, beta, or gamma hemolytic?

A

gamma

39
Q

How does peptostreptococcis make ATP?

A

obligate anaerobes

40
Q

Where is eptostreptococcis found?

A

the mouth, resp track, GU track, bowl

Unit 3 Micro and Immunology (25 decks)

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