Staphylococcus Flashcards

1
Q

Medida de un staphylococcus

A

.5 a 1 micra

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2
Q

Características de las colonias de S. Dorado

A

Amarillentas y redondas

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3
Q

Características de colonias de S. No Aureus

A

Colonias redondas entre grises y abultadas

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4
Q

Fundamento prueba de la catalasa

A

Catalasa descompone peroxido de hidrógeno en moléculas de agua y oxígeno.

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5
Q

Fundamento prueba de la coagulasa

A

Determina la capacidad de la enzima coagulasa a formar coágulos de fibrina por estafilotrombina

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6
Q

Factores de virulencia de S. A

A
Proteína A
Cápsula
Slime
Factor de agregación 
Coagulasa
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7
Q

Enzimas y toxinas

A

Hialuronidasa y estafilosinasa

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8
Q

¿S. Aureus es productor de b- lactamasas?

A

Verdadero

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9
Q

Toxina responsable de intoxicaciones alimentarias

A

Enterotoxina A

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10
Q

Enterotoxina responsable de la colitis pseudomembranosa

A

Enterotoxina B

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11
Q

Enterotoxina responsable de intoxicación por lácteos contaminados

A

Enterotoxina C

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12
Q

Diagnóstico de S.Aureus

A

Exudado de sangre, LCR, Líquido pleural, expectoración y especímenes quirúrgicos

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13
Q

Tto de primer línea para S.Aureus

A

Penicilina penicilinasa resistente (dicloxaciclina)

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14
Q

Tto de segunda línea para S. Aureus

A

Vancomicina. Y teicoplanina

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