streptococcus Flashcards

(19 cards)

1
Q

types d’hemolyse

A

Beta alpha gamma

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2
Q

test de camp

A

distinguer le strep agalactiae des autres strep B hemol

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3
Q

Qc test de camp

A

strep agalactiae zone hemol accentuée
strep pyogenes sans zone hemol accentuée

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4
Q

test sensibilité a la bacitracine

A

strep pyogenes sensible
strep agalactiae resistant

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5
Q

test de PYR

A

pour detecter l’enzyme aminopeptidase chez le strep pyogenes
disque rose foncer = positif

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6
Q

QC test de PYR

A

enterococcus faecalis pos
strep agalactiae neg

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7
Q

positif au strep latex

A

strep agalactiae

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8
Q

test optochin

A

differencie entre strep pneumoniae et strep du groupe viridans

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9
Q

resultats test optochin

A

positif: zone >14mm avec un disque de 6mm
negatif: zone <14mm avec un disque de 6mm

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10
Q

si la zone se situe entre 6-14mm il faut identifier l’organisme apres avoir fait quel test

A

solubilité de la bile

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11
Q

QC test optochin

A

positif: strep pneumo sensible
negatif: strep pyogenes resistant

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12
Q

solubilité de la bile

A

differencier entre strep pneumo et streptocoques du groupe viridans

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13
Q

quel bact est soluble dans la bile

A

strep pneumoniae

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14
Q

QC test solubilité bile

A

postif: strep pneumoniae
negatif: streptococcus mitis

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15
Q

bile esculine

A

identifié strep groupe D et enterococcus

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16
Q

QC bile esculine

A

positif: enterococcus faecalis
negatif: streptococcus agalactiae

17
Q

NaCl 6.5%

A

positif: enterococcus faecalis(jaune pH diminue)
negatif: strep bovis(acune croissance reste violet)

18
Q

pourquoi test hydrolyse de hippurate

A

identification de strep groupe B