Bacte Lec - Staph Flashcards Preview

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Flashcards in Bacte Lec - Staph Deck (96)
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1

gram reaction of staph

positive

2

color of staph in gram stain

positive

3

gram + spherical cells which normally colonize the skin

micrococcus

4

morphology of micrococcus

cubes of 8

5

coagulase reaction of micrococcus

negative

6

coccus bacteria in marine environment
rarely assoc with human infection

planococcus

7

test to diff strep and staph

catalase test

8

catalase rxn of stapg

+

9

all staph are [aerobe or anaerobe]

facultative anaerobe

10

only obligate anaerobe staph

S. saprophyticus

11

hemolytic rxn of staph

beta or non-hemolytic

12

reaction of staph in catalase [describe]

bubble formation

13

catalase test not used on blood agar bec

blood has coagulase

14

rxn of staph on SIM

confined; not turbid

15

common isolate on wound infection

suppurative type of infection [pus-forming]

16

habitant of skin and mucous membrane

staph

17

found in environment on dust
inanimate objects

staph

18

single most impt test to differentiate pathogenic staph from other species

coagulase test

19

coagulase producing staph

Hyicus
Aureus
Delphini
Intermedius
Schleiferi

20

all coagulase producing staph are animal species except

aureus

21

virulence factors of staph [5]

enterotoxin
exfoliative toxin
cytolytic toxin
enzymes
protein A

22

type of VF
heat stable

enterotoxin

23

type of enterotoxin that are resistant to gastric acid and digestive juices

enterotoxin A and enterotoxin D

24

produce acid in the form of HCl

parietal cells

25

type of VF
phage group II
involvement of skin
formation of blisters

Exfoliative toxin

26

type of exfoliative toxin Observed among tampon

Toxic shock syndrome toxin 1

27

type of exfoliative toxin
sloughing off of epidermal layer of skin
scalded skin syndrome [Ritter disease]

epidermolytic

28

staph infection most observed where

skin

29

type of cytolytic toxin
platelets destroyed

alpha toxin/ hemolysin

30

type of cytolytic toxin
injury on most cells on culture and to leukocytes
less lethal

delta hemolysin

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