nocardia Flashcards

1
Q

nocardia são

A

bacilos Gram+ (mas irregular)
filamentosos
aeróbios obrigatórios

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2
Q

nocardia tb são fracos

A

ácido-resistentes devido a parede celular com ácido micólico

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3
Q

crescimento

A

leeento 5-7 dias

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4
Q

espécies

A

astroides + freq
farcinica
brasiliensis
nova

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5
Q

nocardia é ubiqua de

A

solo

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6
Q

as infeções

A

exógenas por inalação ou trauma cutâneo
imunocomprometidos - imunidade celular T
* neoplasia, corticoides
* DPOC, asma…

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7
Q

doença

A

bronco-pulmonar

  • abcessos e necrose
  • pode disseminar para SNC com abcessos cerebrais

micetoma actinomicóttico

  • granulomas supurativos crónicos
  • fístulas

doença linfo-cutânea com granulomas crónicos ao longo de linfáticos
celulite e abcessos cutâneos

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8
Q

diagnóstico nocardia

A

Gram bacilos Gram+ ramificados

Zhiel-Neelsen modificado com ácido sulfúrico a 5% > fraca ácido-resistência

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9
Q

cultura

A

BCYE-alfa ou gelose sangue

5-7 dias

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10
Q

terapêutica

A

cotrimoxazol nas localizadas
carbapenem ou cefotriaxona + amicacina
* 6-12 meses nos imunocompetentes
* >12m nos imunocomprometidos

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