Hemocromatosis p2 Flashcards

1
Q

Como llega el hierro por la dieta?

A

Como Fe3 (ferrico)

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2
Q

Quien cataliza la conversiond de hierro ferrico a hierro ferroso?

A

Vitamina C

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3
Q

Cantidad de hierro que se absorbe al dia?

A

1mg/dia

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4
Q

Quien convierte el hierro ferroso en ferritina?

A

HFE

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5
Q

Quien transporta al hierro?

A

La ferritina

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6
Q

Una dieta normal cuanto hierro contiene?

A

10-20mg

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7
Q

Que % de hierro van a cada organo?

A

75%: Hueso

20%: Higado y corazon

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8
Q

Forma de almacenamiento del hierro

A

Ferritina

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9
Q

Quien describio la hemopcromatosis la primera vez?

A

Recklinhausen 1889

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10
Q

Que puede provocar la hemocromatosis hereditaria:

A
1- Cirrosis/hepatoca
2- Diabetes
3- Miocardiopatia
4- Artropatia
5- Hipogonadismo
6- Hiperpigmentacion cutanea
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11
Q

Exisste una socacion significativa entre hemacromatsis y el antigeno HLA A4

A

No. HLA A3

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12
Q

Relacion hombres:mujeres, hemacromaatosis

A

9:1

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13
Q

Clinica hipercromatosis

A
  • Dolo abdominal
  • Fatiga
  • Dolor articular
  • Perdida de vello
  • Perdida de la libido
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14
Q

Que haces con un px que tienen un familiar de primera linea con hemocromatosis?

A

Genotipo HFE

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15
Q

Que haces con un px sintomatico, que se sospecha de hemocromatosis?

A

IST y Ferritina

IST Mayor de 45% + Ferritina elevada, se le hace genotipo

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16
Q

Si te da C282Y/C282Y, que haces?

A

Ferritina menos de 1000ug/l y transaminasas normales: Flebotomia

Ferritina mas de 1000ug/l y transaminasas elevadas: Biopsia hepatica y o flebotomias