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gram positive cocci Flashcards

1
Q

what is the appearance of positive in MICRODASE test

a. blue color
b. effervescence
c. violet color

A

a. blue color

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2
Q

the principal virulence factor for S. aureus?

a. coagulase
b. microdase
c. catalase

A

a. coagulase

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3
Q

is a mild inflammation of the hair follicle or sebaceous gland

a. folliculitis
b. furuncles
c. carbuncles
d. impetigo

A

a. Folliculitis

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4
Q

it is the best criterion of pathogenicity of S. aureus

a. coagulase
b. mannitol fermentation test
c. DNase test

A

a. coagulase

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5
Q

what are the two methods in coagulase test?

A
  1. slide method

2. tube method

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6
Q

what COAGULASE METHOD is sensitive but definitive?

a. slide
b. tube

A

b. tube

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7
Q

what COAGULASE method is to SCREEN catalase positive colonies?

a. slide
b. tube

A

a. slide

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8
Q

what is the PH indicator for MANNITOL FERMENTATION TEST

a, neutral red

b. phenol red
c. edta

A

b. phenol red

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9
Q

positive color in the test Mannitol Fermentation

a. blue
b. violet
c. yellow

A

c. yellow

M= anniitol —-> M=angga color YELLLOW

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10
Q

Results of TELLURITEGLYCINE AGAR

a. green colonie
b. jet black
c. yellow discolorization around S. aureus

A

b. jet black colonies

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11
Q

this test diffentiates the S. aureus from S. intermedius

a. vp test
b. mannitol fermentation
c. catalase

A

a. vp test

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12
Q

positive result for Voges- Proskauer test

a. yellow
b. pink
c, blue

A

b. pink

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13
Q

positive result for DNase test

a. clear/ colorless
b. jet black colonies
c. pink color acetoin

A

a. clear/ colorless

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14
Q

it is contaminant of MEDICAL INSTRUMENTS, CATHETERS, CSF SHUNTS, PROSTHETIC HEART VALVE IMPLANTS

A. S. aureus
B. S. epidermidis
C. S. lugdunensis

A

b. S. epidermidis

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15
Q

FINAL REAGENT of PRYROLIDONYL ARYLAMIDASE (PYR) test

a. L-pyrrolindone
b. B-naphthylamine
c. p-dimethylaminocinnamaldehyde

A

c. p-dimethylaminocinnamaldehyde
[p-dimethyl amino cinnamal dehyde]

L-pyrrolidone & B-naphthylamine——– END PRODUCTS OF PYR TEST

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16
Q

differentiates COAGULASE POSITIVE staphylococci by SLIDE method

a. pyr test
b. vp test
c. mannitol fermentation test

A

A. PYR TEST

vp test —– differentiates coag positive staphylocccoci by TUBE method

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17
Q

NEGATIVE for PYR test

a. s. aureus
b. s. intermidius
c. s. schleiferi

A

a. s. aureus

s. lugdunensis and s. schleiferi they are POSITIVE and also s. intermidius

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18
Q

used in detecting both CLUMPING FACTOR AND protein A

a. pcr amplification
b. latex agglutination test
c. d-test

A

b. latex agglutination test

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19
Q

classification of Streptococci that is based on TEMPERATURE REQUIREMENT

a. Academic/ Bergey’s classification
b. Smith and Brown classification
c. Lancefield Classification

A

a. academic/bergey’s

20
Q

what are the classification of ACADEMIC/BERGEY’S

1.
2.
3.
4.

pvle

A
  1. Pyogenic grp
  2. Viridan’s grp
  3. lactic gp
  4. enterococcus grp
21
Q

classification of Streptococci that is based on HEMOLYTIC PATTERN

a. Academic/ Bergey’s classification
b. Smith and Brown classification
c. Lancefield Classification

A

B. Smith and brown

22
Q

alpha hemolytic streptococci

a. S. pneumoniae
b. S. pyogenes and S. agalactiae
c. S. bovis

A

a. S. pnuemoniae

S. pnuemoniae ————— A-Nuem/ Anum/almum
S. agalavtiae———————B-agalactiae/bagalactiae

23
Q

this classification is based on EXTRACTION OF C CARBOHYDRATE FROM THE STREPTOCOCCAL CELL WALL

a. Academic/ Bergey’s classification
b. Smith and Brown classification
c. Lancefield Classification

A

C. Lancefield classification

24
Q

according to LANCEFIELD what is grp A streptococci

a. s. pnuemoniae
b. s. pyogenes

A

b. s. pyogenes

25
Q

Responsible for SUBSURFACE hemolysis on BAP that is incubated ANAEROBICALLY

a. streptolysis o
b. streptolysis s

A

a. streptolysis o

26
Q

a punctate exanthem a diffuse erythema appears initially on the neck and upper chest,1 to 2 days following a strep throat

a. scarlet fever
b. pharyngitis
c. carbuncles

A

a. scarlet fever

27
Q

SUSCEPTIBILTY TEST for scarlet fever

a. dicks test
b. catalase test
c. Schultz-Charlton test

A

a. DIcks test

schultz charlton test —————> DIAGNOSTIC TESt

28
Q

a contagious infection of subcutaneous skin tissue that is characterized by redness and an accumulation of fluid

a. carbuncles
b. cellulitis
c. erysipelas

A

b. cellulitis

29
Q

it is used to differentiates S. agalactiae from other Beta hemolytic streptococci

a. camp test
b. pyr test
c. sxt test

A

a. camp test

30
Q

streptococci that is ANIMAL Pathogen and serve as the main source of streptokinase

a. grp a strep
b. grp b strep
c. grp c
d. viridans

31
Q

also knows as ALPHA PRIME STREPTOCOCCI

a. grp a
b. grp b
c. viridans grp

A

viridans grp

32
Q

also known as diplococcus

a. s. aureus
b. s. pneumoniae
c. s. mutans

A

s. pneumoniae

diplococcus or pneumococcus

33
Q

what is the causative agent for S. pneumoniae

a. lobar pneumonia
b. walking pneumonia

A

a. lobar pneumonia

walking pneumonia——————–> Mycoplasma pneumoniae

34
Q

common cause of BACTERIAL MENINGITIS IN ADULTS

A. s. aureus

b. mycoplasma pnuemoniae
c. s. pneumoniae

A

c. s. pnemoniae

35
Q

what is the appearance of YOUNG colonies of S. pneumoniae

a. dome shaped, glsitening,wet and mucoid
b. coin with raised rim
c. dimple shaped

A

young colonis— DOME SHAPED, GLISTENING WET AND MUCOID

old colonies——— COIN WITH RAISED RIM sometimes DIMPLE SHAPED

36
Q

this test is used to detect the presence of antibodies against pneumococci

a. nuefeld-quellung rxn
b. francis test
c. dicks test

A

b. francis skin test

Nuefeld Quellung test————> allows the detection of S. pneumoniae and serotyping of isolates

37
Q

PRESUMPTIVE TEST for S. pneumonia

a. Optochin susceptivility
b. P disk test
c. BIle solubility

A

optochin susceptiivility/ P disk test

bile solubility—————> CONFIMATORY TESTS

38
Q

formerly known as NUTRITIONALLY VARIANT STREPTOCOCCI

a. abiotrophia
b. granulicatella
c. aerococcus

A

a&b abiptrophia and granulicatella

39
Q

it will NOT grow on BAP OR CAP unless PYRODOXAL (B6) is supplied

a. abiotrophia
b. granulicatella
c. aerococcus

A

a. abiotrophia

40
Q

it is a common AIRBORNE BACTERIUM

a. aerococcus
b. gemella
c. lactococcus

A

A. aerococcus

41
Q

it is frequently found on PLANTS SURFACES, ON VEGETABLES AND IN MILK PRODUCTS

a. aerococcus
b. lactococcus
c. leuconostoc

A

c. leuconostoc

42
Q

(+) CAMP

a. s. pyogenes
b. s. agalactiae
c. s. pnuemoniae

A

b. s. agalactiae

43
Q

SUSCEPTIBLE IN OPTOCHIN

a. s. pyogenes
b. s. agalactiae
c. s. pnuemoniae

A

s. pnuemoniae

44
Q

most common cause of SUBACUTE BACTERIAL ENDOCARDITIS

a. viridans strep
b. s. pyogenes
c. enterococci

A

viridans strep

45
Q

is an enzyme that is found in isolates of large, colony forming, beta hemolytic group C and G streptococci

a. LAP test
b. VP test
c. B-D-glucoronidase test

Bacteriology (12 decks)

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