Generalidades de los Streptococcus Flashcards

(24 cards)

1
Q

Streptoccocus son gram..

A

POSITIVO

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2
Q

Streptococcus son catalasa..

A

NEGATIVO

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3
Q

¿Cómo se ve la Gamma hemolisina en el agar sangre?

A

NADA
(hace leucocitosis no hemólisis)

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3
Q

¿Con qué prueba de laboratorio se diferencían los streptococcus?

A

Hemolisinas

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4
Q

Tipos de hemolisinas: (3)

A

Gamma
Beta
Alfa

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5
Q

¿Cómo se ve la alfa hemólisis en el agar sangre?

A

VERDE
(hemolisina débil)

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6
Q

¿Cómo se ve la beta hemólisis en el Agar sangre?

A

TRANSPARENTE (blanco)
(hemólisis fuente)

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7
Q

¿Qué son los GAS?

A

Streptococco del grupo A

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7
Q

¿Qué agrupaciones de serogrupos (lancefield) se utilizan actualmente?

A

GAS y GBS

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8
Q

¿Qué son los GBS?

A

Streptococco del gpo B

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9
Q

¿Qué prueba de laboratorio utilizamos para diferenciar entre streptococcus?

A

Sensibilidad a Ab

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10
Q

¿Qué Ab se utilizan? (2)

A

Optoquina
Bacitracina

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11
Q

Optoquina diferencía entre: (2)

A

S. pneumoniae
S. viridans

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12
Q

Bacitracina diferencía entre (2)

A

S. pyogens
S. agalactiae

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13
Q

____________ es sensible a la Bacitracina:

A

S. pyogens

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14
Q

__________ es sensible a la Optoquina:

A

S. pneuomniae

15
Q

____________ es resistente a la Optoquina:

16
Q

____________ es resistente a la Bacitracina:

A

S. agalactiae

17
Q

¿Cuál es la morfología de los Streptococcus?

A

Diplococcos o cadenas cortas

18
Q

Son.. (respiración celular):

A

Anaerobios facultativos