pseudomonas aeruginosa Flashcards

1
Q

características de pseudomonas
* forma
* gram
* disposición
* aer/anaer

A
  • bacilos largos
  • gram -
  • muchas veces en parejas
  • aerobio obligado
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2
Q

pigmentos mucoides que produce pseudomona aeruginosa

A
  • pioverdina
  • piocacina
  • piorrubina
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3
Q

en donde se ven los pigmentos de pseudomonas aeruginosa?

A

en vivo en heridas

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4
Q

como es el requerimiento nutricional de pseudomonas?

A

poco

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5
Q

FP de pseudomona aeruginosa

A
  • adhesinas
  • exotoxoinas
  • piopigmentos
  • resistencia a Ab
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6
Q

adhesinas de aeruginosa

A
  • flagelos
  • pili
  • LPS
  • alginato (biopelicula)
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7
Q

exotoxinas de aeruginosa

A
  • exotoxina A
  • hemolisinas y enzimas que degradan tejidos
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8
Q

que hace la exotoxina A?

A

inhibe sintesis de proteinas

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9
Q

piopigmentos de aeruginosa

A
  • piocianina
  • pioverdina
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10
Q

qué hace la piocinanina?

A
  • estimula IL-8
  • produce superoxido H2O2
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11
Q

como desarrollan resistencia a Ab la aeruginosa?

A
  • muta porinas para que no entre el Ab
  • resistencia intrinseca
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12
Q

que infecciones causa aeruginosa?

A
  • inf cutaneas
  • pulmonares
  • nosocomiales
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13
Q

infecciones cutáneas que causa aeruginosa

A
  • ectinema gangrenoso
  • inf en quemaduras
  • heridas en suelas (osteocondritis)
  • hot tub folliculitis
  • otitis externa
  • queratitis bact x lentes de contacto
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14
Q

principal fact de riesgo para hot tub foliculitis

A

meterte al jacuzzi

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15
Q

que infecciones pulmonares causa la aeruginosa?

A
  • colonización asintomática
  • traqueobronquitis
  • neumonia necrosante
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16
Q

factores de riesgo para infecciones pulmonares por aeruginosa

A
  • fibrosis quística
  • traqueostomía
  • ventilación mecánica
17
Q

que infecciones nosocomiales causa aeruginosa?

A
  • neumonía asociada a ventilador
  • UTI asociada a sonda
  • bacteriemia x cateter