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Micro ana q > Enterococcus > Flashcards

Enterococcus Flashcards

1
Q

Grupo de Lancefield

Enterococos

A

Grupo D

S. viridans –> grupo S. bovis

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2
Q

Morfología

Enterococos

A

Pares o cadenas cortas

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3
Q

Especies principales

Enterococos

A
  • E. faecalis
  • E. faecium
  • E. gallinarum
  • E. casseliflavus

38 especies

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4
Q

Enterococos forman/no forman parte de microbiota

A

Forman parte de microbiota en colon

E. faecalis > E. faecium

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5
Q

Metabolismo

Enterococos

A

Aerobios y anaerobios

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6
Q

Hemólisis

Enterococos

A

Gamma

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7
Q

Temperatura y pH

Enterococos

A
  • 10 - 45ºC
  • 4.6 - 9.9
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8
Q

Enterococo crece en altas concentraciones de ______ y en presencia de ______

A
  • Sal
  • Sales biliares

También en sal Staph. aureus

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9
Q

Enterococos presentan prueba positiva de:

A

Bilis-Esculina

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10
Q

Prueba de Bilis-Esculina

Enterococos

A

Hidrólisis de esculina reacciona con hierro y tiñe medio marrón oscuro

Enterococos no se disuelven en bilis

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11
Q

Enterococos son resistentes a:

A

Optoquina

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12
Q

Enterococos producen/no producen toxinas

A

NO producen

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13
Q

Factores de virulencia

Enterococos

A
  • Adhesinas de superficie
  • Biofilm
  • Resistencia a antibióticos comunes
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14
Q

Patogenicidad relacionada a:

Enterococos

A

Cuidado hospitalario
- Antibióticos de amplio espectro
- Catéteres, sondas, dispositivos

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15
Q

Enfermedades

Enterococos

A
  • Infecciones de vías urinarias: cistitis y pielonefritis
  • Infecciones peritoneales polimicrobianas: después de cirugía/traumatismo
  • Endocarditis
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16
Q

Resistencia de Staph. aureus a vancomicina (gen mecA) fue transmitida:

Enterococos

A

Por enterococos por medio de un transposón

Micro ana q (45 decks)

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