influenza Flashcards

1
Q

generos del virus de la influenza

A

A-B-C

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2
Q

como se dividen los virus A

A

con base en sus antígenos

de superfi cie de hemaglutinina (H) y neuraminidasa (N

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3
Q

funcion de l a hemaglutinica y la neuraminidasa

A

hemaglutinina es el sitio en el cual el virus se une a los receptores celulares
de ácido siálico
neuraminidasa degrada el receptor e interviene
en la liberación del virus

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4
Q

principal reservorio del virus de gripe A

A

aves acuaticas; 16 subtipos de hemaglutinibas y 0 neuroaminidasas

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5
Q

como medir la respuesta a los anticuerpos sericos

A

inhibicion de la hemaglutinacion
fijacion del complemento
ELISA

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6
Q

manifestaciones clinicas influenza

A
cefalea
febriculas
escalofrios
mialgias
tos 
faringitis
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7
Q

zona mas comun de mialgias en influenza

A

extremidades inferiores y area lumbosacra

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8
Q

principal complicacion de la influenza

A

neumonia

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9
Q

como se divide la neumonia causada por influenza

A

neumonia primaria
neumonia bacteriana secundaria
mixta

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10
Q

complicaciones extrapulmonares

A

miositis
rabdmiolisis
mioglobinuria

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11
Q

complicaciones de SNC en influenza

A

encefalitis
mielitis transversa
Sx Guillain-Barre

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12
Q

Sx Reye?

A

complicacion grave en los niños que esta ligada la gripe B debido a trataiento con acido acetilsalicilico para infeccion virica

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13
Q

Dx de influenza; tecnica mas sensible y especifica

A

RT-PCR

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14
Q

Tx influenza

A

antivirales: zanamivir, oseltamivir y peramivir
amantadinicos: amantadina y rimantadina

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15
Q

mec accion y espectro de accion

A

antivirales: inhibidores de neuroaminidasa contra los virus A y B
amantadinicos: contra gripe A

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