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Clinical Bacteriology > STAPHYLOCOCCUS AND MICROCOCCUS > Flashcards

STAPHYLOCOCCUS AND MICROCOCCUS Flashcards

(49 cards)

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1
Q

Most cocci are gram-positive, EXCEPT:

A

Moraxella
Neisseria
Veillonella

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2
Q

TRUE OR FALSE; Moraxella is a cocci, gram-negative bacteria

A

TRUE

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3
Q

Veillonella - cocci, gram- *** bacteria

A

gram-negative

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4
Q

TRUE OR FALSE: Neisseria is a cocci, gram-positive bacteria

A

FALSE; cocci, gram-negative

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5
Q

Most bacilli are gram-negative, EXCEPT:

A

B(2) - Bacillus, Bifidobacterium
A - Actinomyces
N - Nocardia
S - Streptomyces
C(2) - Clostridium, Corynebacterium
E - Erysipelithrix
L(2) - Listeria, Lactobacillus

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6
Q

name cocci, gram negative bacteria

A

Moraxella
Neisseria
Veilonella

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7
Q

these are gram-negative, motile, spiral bacteria

A

spirochetes

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8
Q

Coagulase-negative staphylococci (most commonly encountered)

A

H - Staphylococcus haemolyticus
E - Staphylococcus epidermidis
L - Staphylococcus lugdunensis
S - Staphylococcus saprophyticus
S - Staphylococcus schleiferi

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9
Q

Coagulase-negative staphylococci

A

S - Staphylococcus simulans
C - Staphylococcus capitis
C - Staphylococcus caprae
C - Staphylococcus cohnii
A - Staphylococcus auricularis
W - Staphylococcus warneri
H - Staphylococcus hominis
X - Staphylococcus xylosus

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10
Q

color of gram positive cocci

A

purple/ violet

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11
Q

these are the most common Staphylococcus species.

A

S - Staphylococcus saprophyticus,
H - Staphylococcus haemolyticus
A - Staphylococcus aureus,
L - Staphylococcus lugdunensis
E - Staphylococcus epidermidis,

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12
Q

name the 4 genera of Micrococcaceae

A

M - Micrococcus
S - Staphylococcus
S - Stomatococcus
P - Planococcus

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13
Q

name the 6 genera of streptococcaceae

A

L P G - S E A

L - Leuconcoccus
P - Pediococcus
G - Gemella
S - Streptococcus
E - Enterococcus
A - Aerococcus

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14
Q

growth characteristics of micrococcus in 5% SDA

A

obligate aerobe

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15
Q

growth characteristics (5% SDA) of streptococcus

A

facultative anaerobe

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16
Q

growth characteristics (5% SDA) of staphylococcus

A

facultative aerobe

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17
Q

colony appearance of micrococcus, staphylococcus, and streptococcus

A

micrococcus - small-medium
staphylococcus - medium-large (pinhead)
streptococcus - small (pinpoint)

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18
Q

hemolysis

A

micrococcus - non-hemolytic
staphylococcus - non-hemolytic, beta-hemolysis
streptococcus - alpha, beta, gamma- hemolysis

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19
Q

catalase test

A

micrococcus: +
staphylococcus: +
streptococcus: —

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20
Q

modifies oxidase test

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A

micrococcus: +
staphylococcus: —
streptococcus: —

21
Q

Staphylococci are members of the newly formed family called what

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A

Staphylococceae

22
Q

Some micrococci have a tendency to produce a *** pigment

23
Q

the most common among the CONS

Study These Flashcards
A
  • Staphylococcus epidermidis
  • Staphylococcus saprophyticus.
24
Q

the frequent cause of UTI in adolescent girls and young women is the ***

Study These Flashcards
A

Staphylococcus saprophyticus

25
golden-yellow colonies; pathogenic
coagulase-positive S. aureus
26
lemon yellow colonies; chromogenic opportunistic pathogen
CONS, S. aureus
27
white pigment; chromogenic opportunistic pathogen
S. citreus
28
white pigment
S. albus
29
animal pathogen
S. hyicus S. intermedius
30
predominant normal flora on the skin; leading cause of Iantrogenic infection
S, epidermidis
31
The genus name, Staphylococcus, is derived from the Greek term __________, meaning “bunches of grapes.”
staphle
32
greek erm “staphle” means ________________
branches of grapes
33
Genus staphylococus contain (how many) defined species and 20 are species found in man.
33
34
Staphylococci colonies produced after 18 to 24 hours of incubation are medium sized (4 to 8 mm) and appear cream-colored, white or rarely light gold, and “___________”
buttery-looking.
35
Rare strains of staphylococci requires carbon dioxide, hemin, or menadione for growth, thus makes them a _____________ microorganism
fastidious organism
36
Staphylococcal species are initially differentiated by the what test
coagulase test
37
what staphylococci are considered as staphylocoagulase-producing (coagulase-positive)
D I A L - H S. delphini S. intermedius S. aureus S. lutrae and some strains of S. hyicus
38
it is the staphylococci that is considered as the most clinically significant specie
Staphylococcus aureus
39
Staphylococcus aureus is also associated with toxin-induced diseases such as:
1. food poisoning 2. scalded skin syndrome (sss) 3. toxic shock syndrome (tss)
40
a specie that has been known to cause various health care-acquired or nosocomial infections
S. epidermidis
41
these are habitats of what Staphylococci species - Normal flora - Anterior nares - Nasopharynx - Perineal area - Skin - Colonizer of mucosa
Staphylococcus aureus
42
- Endogenous strain: sterile site by traumatic introduction (e.g. surgical wound or microabrasions - Direct contact: person-to-person, fomites - Indirect contact: aerosolized these are modes of transmission of what species of staphylococci
S. aureus
43
- Normal flora - Skin - Mucous membranes these are habitats of what 3 species of staphylococci
H E L 1. S. haemolyticus 2. S. epidermidis 3 S. lugdunensis
44
- Endrogenous strain: sterile site, by implantation of medical devices (e.g. shunts, prosthetic devices) - Direct contact: person-to-person these are modes of transmission of what 3 species of staphylococcus
H E L 1. S. haemolyticus 2. S. epidermidis 3 S. lugdunensis
45
- Normal flora - Skin - Genitourinary tract - Mucosa the following are habitat of what staphylococci
Staphylococcus saprophyticus
46
It is an infection caused by an infectious agent that is present on or in the host prior to the start of the infection.
endogenous infection
47
Endrogenous strain: sterile urinary tract, notably in young sexually active females. the modes of transmission mentioned above are caused by what staphylococci
Staphylococcus saprophyticus
48
- Normal flora - Skin - Mucosa - Oropharynx the following are habitats of what organisms
M K K - Micrococcus spp. - Kocuria spp - Kytococcus spp.
49
it is a term used to describe a disease or condition in which a purulent exudate (pus) is formed and discharged.
Suppurative

Clinical Bacteriology (9 decks)

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