BGN aeróbias no fermentadoras: Pseudomonas Flashcards

1
Q

Positivo para

A

Oxidasa

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2
Q

Forman parte de la microbiota?

A

NO
- Son oportunistas

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3
Q

En dónde se encuentran?

A

En todas partes: Ubicuos
- Les gusta la humedad

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4
Q

Cómo se ven bajo el microscopio?

A
  • Bacilos en pareja con forma de coma
    Gram negativos
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5
Q
  • Pigmentos que tiene
A
  • Pioverdina
  • Piocianina
  • Piorrubina (rojo)
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6
Q

Qué hace la pioverdina

A

Tiñe de verde
- Sideróforo (alimenta de hierro)

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7
Q

Qué hace la piocianina

A

Tiñe de azúl
- secreta IL-8

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8
Q

Factores de virulencia

A
  • Adhesinas
  • Exotoxinas
  • Piopigmentos
  • Resistencia a antibióticos
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9
Q

Adhesinas

A
  • Flagelos
  • Pili
  • Alginato: Biofilml
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9
Q

Exotoxinas

A
  • A: Inhibe la síntesis de proteínas
  • Hemólisis y enximas degradadoras
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10
Q

Por qué son resistentes a antibióticos?

A

Mutaciones en sus porinas: Impiden la entrada del antibiótico

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11
Q

Enfermedades en gente sana

A
  • Infecciones cutáneas
  • Otitis externa
  • Queratitis bacterianas asociadas alentes de contacto
  • Folliculitis de jacuzzi
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12
Q

Enfermedades en pacientes inmunodeprimidos/ colonizados

A

Hospitalario
- Infecciones pulmonares
- Traqueobronquitis
- Neumonía necrosante

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13
Q

Factores de riesgo

A
  • Fibrosis quística
  • Traqueostomía
  • Ventilación médica
  • Uso previo de antibióticos
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14
Q

Tratamiento

A

medicamentos antipseudomónicos

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