heparina Flashcards

1
Q

mecanismo de acción de heparina

A
  • potencia AT-3
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2
Q

qué inhibe la AT-3?

A

IIa y Xa

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3
Q

usos de heparina

A
  • profilaxis
  • tx IV de TVP y TE
  • previene SCA: STEMI y NSTEMI
  • previene coagulación
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4
Q

en que circunstancias se usa la heparina?

A
  • cx arterial y cardiaca
  • fib A
  • transfusiones de sangre
  • dialisis renal
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5
Q

qué se busca lograr con la heparina?

A

indice de coag de 1.5 a 2 veces + pero es dificil de calcular

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6
Q

EA de heparina

A
  • hemorragia
  • HIT (2 tipos)
  • osteoporosis por uso prolongado
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7
Q

HIT 1

A
  • plaquetas y heparina generan agregación plaquetaria
  • la disminucion de plaquetas en circulacion genera TROMBOCITOPENIA
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8
Q

por que esta mediado HIT 2?

A

inmunoglobulinas
* heparina + plaquetas + Ac

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9
Q

antídoto de heparina

A

protamina

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