Viridans streptococcus And other strep like spp.

Question 1

URT (upper respiratory tract)
* Female genital tract
* GIT (gastrointestinal tract

Answer 1

normal flora for viridian’s strep

Question 2

bacterial endocarditis caused by what

Answer 2

viridian’s

Question 3

alpha or gamma hemolysis on what plate

Answer 3

bap

Question 4

optochin disk neg

Answer 4

viridans

Question 5

BE negative

Answer 5

viridans

Question 6

translucent, grayer, rough margin, umbonate center

Answer 6

a hemolytic viridian’s strep

Question 7

Nutritionally variant streptococci (NVS)

Answer 7

abiotrophia

Question 8

opportunistic pathogen; normal flora of the GI tract and GU tract

Answer 8

Abiotrophia

Question 9

abiotrophia can causes diseases such as these and are difficult to treat with antibiotics

Answer 9

Bacteremia
* Endocarditis
* Otitis media
* Brain abscesses
* Meningitis

Question 10

May satellite growth around Staph Aureus

Answer 10

abiotrophia (nvs)

Question 11

Hard to grow in culture: (fastidious)
* Require pyridoxal (vitamin B6) or sulfydryl compounds
* will not grow on blood or chocolate agar

Answer 11

nvs

Question 12

Opportunistic pathogen
* Bacteremia, endocarditis, and UTI in immunocompromised; LAP test neg

Answer 12

Aerococcus

Question 13

Previously streptococci
* UTIs and endocarditis

Answer 13

Lactococcus

Question 14

Irregular coccoid morphology
* Bacteremia, UTIs, meningitis
* Intrinsically resistant to vancomycin; LAP test neg

Answer 14

Leuconostoc

Question 15

Arranged in tetrads, pairs, and clusters
* Bacteremia, abscesses, meningitis
* Intrinsically resistant to vancomycin

Answer 15

Pediococcus

Question 16

what does MALDI-TOF MS stand for

Answer 16

Matrix-Assisted Laser Desorption/Ionization-Time of Flight Mass Spectrometry

Question 17

6.5% NaCl pos or neg

Answer 17

neg

Question 18

what antibiotic are they sensitive to?

Answer 18

penicillin