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IBI Test I > Gram-Positive Bacteria > Flashcards

Gram-Positive Bacteria Flashcards

1
Q

resistance to beta-lactam antibiotics

A

MRSA

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2
Q

important cause of serious nosocomial and community acquired infections

A

MRSA

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3
Q

altered penicillin binding protein target site

A

MRSA

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4
Q

_______ gene from staphylococcal chromosomal cassette involved in penicllin resistance

A

mecA

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5
Q

MRSA treatment

A

vancomycin

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6
Q

lancet shaped diplococci

A

Step. pneumoniae

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7
Q

Strep. pneumoniae virulence factors

A

encapsulated
IgA protease
Bile soluble
Optochin sensitive

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8
Q

encapsulated bacteria causes bacteremia/sepsis in patients with

A

sickle cells disease or asplenia

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9
Q

IgA protease

A

cleaves IgA at its hinge regions

increases bacterial adherence to mucosal membranes

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10
Q

S. aureus is catalase

A

positive

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11
Q

S. aureus is coagulase

A

positive

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12
Q

S. aureus is ______ hemolytic

A

beta

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13
Q

beta hemolysis results in

A

clear regions around the bacteria

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14
Q

S. aureus is mannitol

A

positive

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15
Q

Virulence factor: S. aureus

A

protein A

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16
Q

protein A

A

prevents opsonization/phagocytosis

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17
Q

joint pain, abcesses

A

S. aureus

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18
Q

acute endocarditis

A

S. aureus

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19
Q

Presentation: IV drug user, right sided endocarditis, tricuspid valve

A

S. aureus

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20
Q

most common cause of osteomyelitis

A

S. aureus

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21
Q

treatment: S. aureus (uncomplicated)

A

nafcillin

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22
Q

treatment: MRSA

A

vancomycin

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23
Q

treatment: Vanc resistant S. aureus

A

quinupristin, dalfopristin

24
Q

S. epidermis is catalase

25
Q

most common cause of endocarditis related to hardware, indwelling catheters, prosthetic valves

A

S. epidermis

26
Q

forms biofilms

A

S. epidermis

27
Q

S. epidermis is nobacin

28
Q

S. epidermis is urease

29
Q

S. sapro is nobacin

30
Q

S. sapro is catalase

31
Q

S. sapro is urease

32
Q

S. epidermis is coagulase

A

negative

**differentiation to S. aureus

33
Q

S. sapro is coagulase

34
Q

most common cause of UTIs in sexually active females

35
Q

is S. pyogenes encapsulated

36
Q

S. pyogenes is ______ hemolytic

37
Q

strep throat

A

S. pyogenes

38
Q

treatment: S. pyogenes

A

penicillin

39
Q

S. pyogenes is bacitracin

40
Q

post strep glomerular nephritis is a ______ hypersensitivity reaction

41
Q

dark, cola colored urine

A

post strep glomerular nephritis

42
Q

S. agalactiae encapsulated?

43
Q

S. agalactiae is _____ hemolytic

44
Q

S agalactiae is bacitracin ______

45
Q

S. pnuemoniae adult vaccine is _____ valent

46
Q

the S. pneumoniae vaccine uses

A

polysaccaride

47
Q

S. pneumoniae adult vaccine produces

48
Q

S. pneumoniae childrens vaccine is _____ valent

49
Q

S. pneumoniae childrens vaccine is ______

A

conjugated with protein to be more antigenic, produces IgG and IgM

50
Q

S. viridans is ________ hemolytic

51
Q

is S. viridans encapsulated?

52
Q

S. viridans is optochin

53
Q

S. viridans is bile

54
Q

S. viridans: S. mutans and S. sanguinis are associated with

A

dental caries; endocarditis

55
Q

what is typical of endocarditis caused by S viridans?

A

sub acute

infects a previously damaged mitral valve

56
Q

Treatment: e. faecium

A

linezolid, tiggecycline

IBI Test I (18 decks)

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