TSFS Eritrocitos Flashcards

Eritrocitos

1
Q

Funciones principales de los eritrocitos

A

Transporte de O2
Regulación pH

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2
Q

Los eritrocitos estan llenos de…

A

Hemoglobina

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3
Q

Hemoglobina promedio normal

A

14 - 16

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4
Q

¿Qué realmente carga con el O2 en la hemoglobina?

A

Grupo hemo (Fe)

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5
Q

Como se forma bicarbonato H2CO3

A

CO2 + H2O por anhidrasa carbónica en eritrocitos

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6
Q

¿Quién produce eritropoyetina?

A

Riñón

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7
Q

¿Donde se originan los eritrocitos?

A

Médula ósea por estímulo de EPO

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8
Q

Reticulocitos

A

Eritrocitos previos
Sirve para medir si se estan regenerando los eritrocitos

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9
Q

Reticulocitos H

A

0.8 - 2.5

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10
Q

Reticulocitos M

A

0.8 - 4.1

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11
Q

Eritrocitos H

A

4.6 - 6.3 mill

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12
Q

Eritropoyesis en adultos

A

Principalmente cuerpos vertebrales, esternón y costillas

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13
Q

Eritrocitos M

A

4.2 - 5.4 mill

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14
Q

<12 hemoglobina

A

Anemia

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15
Q

Hematócrito H

A

47

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16
Q

Hematócrito M

A

41

17
Q

3 factores indispensables para la producción de eritrocitos

A

Fe
Á. fólico
Vit. B12

18
Q

Vida media de eritrocitos

A

90-120 días

19
Q

¿Donde se reciclan los eritrocitos?

A

En bazo por macrófagos
Globina
→ a.a. para nuevas prot
G. hemo
→ Fe-transferrina a médula ó.
→Biliverdina bilirrubina

20
Q

Tipos de anemias (VMC)

A

Normociticas
Microcíticas
Macrocíticas

21
Q

Anemias normocíticas

A

Hemorrágica
Aplásica (no se estan produciendo)
Enf. renal

22
Q

Anemias microcíticas

A

Ferropénica

23
Q

Anemias macrocíticas

A

Deficiencia B12
Deficiencia folato