Staphylococcus Aureus Flashcards

1
Q

Qué color se muestra en los cultivos de agar sangre?

A

Dorado

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2
Q

Formación

A

Racimo de uvas

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3
Q

Catalasa

A

Positivo

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4
Q

Coagulasa

A

Positivo

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5
Q

Hemólisis

A

Beta

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6
Q

Qué área coloniza?

A

La nasofaringe de manera asintomática

Área perineal y perianal.

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7
Q

Medios de cultivo:

A

Agar sangre y sal - manitol

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8
Q

Factores de virulencia que desarman nuestras defensas:

A

Proteína A
Coagulasa
Penicilinasa

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9
Q

Proteína A

A

Protege contra la opsonización ( que la IgA lo etiquete y los neutrofilos las destruyan).

Protege contra la fagocitosis.

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10
Q

Coagulasa

A

Protege contra fagocitosis.

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11
Q

Penicilinasa

A

Da resistencia a Betalactámicos

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12
Q

Factores de virulencia : Toxinas:

A

ETE: enterotoxinas estafilocócicas:
Toxinas exfoliativas (ETA y ETB):
TSST-1: toxina de choque estafilocócico tipo 1:

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13
Q

Transmisión

A

De persona a persona.

Por exposición a fómites contaminados.

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14
Q

En riesgo

A

Niños principalmente.

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15
Q

Enfermedades por toxinas:

A

Intoxicación alimentaria: ETE
SSSS: síndrome de la piel estafilocócica escaldada: ETA y ETB.
Choque tóxico estafilocócico: TSST-1

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16
Q

Vacuna

A

No

17
Q

Enfermedades por bacteria:

A

Neumonía
Meningitis
IPTB

Impétigo
Celulitis
Foliculitis
Abscesos

18
Q

Tratamiento

A

Dicloxacilina
Vancomicina
Linezolid

19
Q

Gram

A

Positivo

20
Q

Movilidad

A

No

21
Q

Oxígeno

A

Anaeróbico facultativo

22
Q

Esporas

A

No