rickettsias Flashcards

1
Q

estructuralmente, rickettsias son similares a:

A

gram negativas

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2
Q

rickettsias son intracelulares _

A

obligados

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3
Q

rickettsia se transmite mediante:

A

zoonosis por vector

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4
Q

especies patogenas de rickettsia

A
  • R. rickettsii
  • R. akari
  • R. prowazekii
  • R. typhi
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5
Q

tinciones para rickettsia rickettsii

A

Giemsa o Gimenez

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6
Q

rickettsia se tiñe con gram?

A

no

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7
Q

rickettsia rickettsii produce toxinas?

A

no

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8
Q

rickettsia rickettsii es transmitida por:

A

garrapatas

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9
Q

zona endemica de rickettsia rickettsii

A

sureste de USA

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10
Q

pueden ser hospederos de rickettsia rickettsii

A

venado y rata

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11
Q

enfermedad que rickettsia rickettsii

A

RSMF rocky mountains spotted fever

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12
Q

cuadro clinico de rocky mountains spotted fever

A
  • fiebre elevada
  • mialgias
  • exantema macular
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13
Q

complicaciones de rocky mountains spotted fever

A

complicaciones neurologicas, falla renal y choque

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14
Q

rocky mountains spotted fever tiene una mortalidad de _ sin tratamiento

A

25%

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15
Q

diagnostico para rickettsia rickettsii

A
  • microscopia con Giemsa o Gimenez
  • PCR
  • cultivo en huevos embrionados
  • serologia: Weil-Felix y microinmunofluoresencia
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16
Q

tratamiento contra rickettsia rickettsii

A

doxiciclina

17
Q

tanto Lyme como rickettsia se tratan con:

A

doxiciclina