Staphylococus Flashcards

1
Q

Semejanza de las bacterias gram positivas:

A

Forma esférica
tincion
ausencia de endosporas

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2
Q

Diferencias de las bacterias gram positivas:

A

Catalasa positiva: Staphilococus
Catalasa Negativa: Streptococus y enterococus
Aerobios y anaerobios facultativos

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3
Q

Que és la catalasa?

A

Enzima que converte perioxido de hidrogeno en oxigeno y água

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4
Q

Clasificacion de Staphilococus:

A

S. Epidermidis
S. Aureus
S. Saprophyticus

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5
Q

Cual de los Staphylococus és más virulento?

A

S. Aureus

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6
Q

Staphylococus com coagulasa positiva:

A

S. Aureus

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7
Q

Toxinas del Staphylococus aureus:

A

Citotoxinas: tóxicas para celulas como eritrocitos, fibroblastos, macrófagos, plaquetas e leucocitos. Tipos: Alfa, Beta, Delta y gamma.

Toxinas esfoliativas (ETA, ETB)

Enterotoxinas (A-E, G-I):

Toxina 1 da sindrome do choque tóxico.

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8
Q

Donde és más comun la colonización de los Staphylococus:

A

En ninos mayores y adultos na nasofaringe.

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9
Q

Doenças mediadas por toxinas/ Staphylococus:

A

Sindrome da pele escaldada
Intoxicação alimentar
Choque tóxico

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10
Q

Sindrome da pele escaldada:

A

Bolhas cutâneas
Impetigo bolhoso
Doença contagiosa
Mais comum em bebês y crianças

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11
Q

Sindrome do choque tóxico:

A

Púrpura fulminante
Lesões de pele

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12
Q

Tipos de infecções cutâneas:

A

Impetigo: infecção cutânea com Pus
Foliculite: Impetigo al redor de foliculos pilosos.
Furunculos: Nodulos grandes preenchidos de pus
carbunculo: coalescencia de furunculos

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13
Q

Transmision de Staphylococus:

A

Lesões patológicas purulentas
fosas nasales contaminadas

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14
Q

Tratamiento:

A

Vancomicina

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