Gram-Positive Bacteria

Question 1

resistance to beta-lactam antibiotics

Answer 1

MRSA

Question 2

important cause of serious nosocomial and community acquired infections

Answer 2

MRSA

Question 3

altered penicillin binding protein target site

Answer 3

MRSA

Question 4

_______ gene from staphylococcal chromosomal cassette involved in penicllin resistance

Answer 4

mecA

Question 5

MRSA treatment

Answer 5

vancomycin

Question 6

lancet shaped diplococci

Answer 6

Step. pneumoniae

Question 7

Strep. pneumoniae virulence factors

Answer 7

encapsulated
IgA protease
Bile soluble
Optochin sensitive

Question 8

encapsulated bacteria causes bacteremia/sepsis in patients with

Answer 8

sickle cells disease or asplenia

Question 9

IgA protease

Answer 9

cleaves IgA at its hinge regions

increases bacterial adherence to mucosal membranes

Question 10

S. aureus is catalase

Answer 10

positive

Question 11

S. aureus is coagulase

Answer 11

positive

Question 12

S. aureus is ______ hemolytic

Answer 12

beta

Question 13

beta hemolysis results in

Answer 13

clear regions around the bacteria

Question 14

S. aureus is mannitol

Answer 14

positive

Question 15

Virulence factor: S. aureus

Answer 15

protein A

Question 16

protein A

Answer 16

prevents opsonization/phagocytosis

Question 17

joint pain, abcesses

Answer 17

S. aureus

Question 18

acute endocarditis

Answer 18

S. aureus

Question 19

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

Answer 19

S. aureus

Question 20

most common cause of osteomyelitis

Answer 20

S. aureus

Question 21

treatment: S. aureus (uncomplicated)

Answer 21

nafcillin

Question 22

treatment: MRSA

Answer 22

vancomycin

Question 23

treatment: Vanc resistant S. aureus

Answer 23

quinupristin, dalfopristin

Question 24

S. epidermis is catalase

Answer 24

positive

Question 25

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

Answer 25

S. epidermis

Question 26

forms biofilms

Answer 26

S. epidermis

Question 27

S. epidermis is nobacin

Answer 27

sensitive

Question 28

S. epidermis is urease

Answer 28

positive

Question 29

S. sapro is nobacin

Answer 29

resistant

Question 30

S. sapro is catalase

Answer 30

positive

Question 31

S. sapro is urease

Answer 31

postitive

Question 32

S. epidermis is coagulase

Answer 32

negative **differentiation to S. aureus

Question 33

S. sapro is coagulase

Answer 33

negative

Question 34

most common cause of UTIs in sexually active females

Answer 34

S. sapro

Question 35

is S. pyogenes encapsulated

Answer 35

yes

Question 36

S. pyogenes is ______ hemolytic

Answer 36

beta

Question 37

strep throat

Answer 37

S. pyogenes

Question 38

treatment: S. pyogenes

Answer 38

penicillin

Question 39

S. pyogenes is bacitracin

Answer 39

sensitive

Question 40

post strep glomerular nephritis is a ______ hypersensitivity reaction

Answer 40

III

Question 41

dark, cola colored urine

Answer 41

post strep glomerular nephritis

Question 42

S. agalactiae encapsulated?

Answer 42

yes

Question 43

S. agalactiae is _____ hemolytic

Answer 43

beta

Question 44

S agalactiae is bacitracin ______

Answer 44

resistant

Question 45

S. pnuemoniae adult vaccine is _____ valent

Answer 45

23

Question 46

the S. pneumoniae vaccine uses

Answer 46

polysaccaride

Question 47

S. pneumoniae adult vaccine produces

Answer 47

IgM only

Question 48

S. pneumoniae childrens vaccine is _____ valent

Answer 48

7

Question 49

S. pneumoniae childrens vaccine is ______

Answer 49

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

Question 50

S. viridans is ________ hemolytic

Answer 50

alpha

Question 51

is S. viridans encapsulated?

Answer 51

No

Question 52

S. viridans is optochin

Answer 52

resistant

Question 53

S. viridans is bile

Answer 53

resistant

Question 54

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

Answer 54

dental caries; endocarditis

Question 55

what is typical of endocarditis caused by S viridans?

Answer 55

sub acute infects a previously damaged mitral valve

Question 56

Treatment: e. faecium

Answer 56

linezolid, tiggecycline