anemia megaloblastica
TRANSCRIPT
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Anemia megaloblastica
Nelfa M. Castillo GarcíaNikaury Anabel Rodríguez
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Causas de anemia megaloblastica
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Anemia megaloblastica por deficiencia de acido fólico B9
• Metabolismo del acido fólico
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Fuentes de acido fólico
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Absorción del acido fólico
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Transporte
Reservas
Funciones
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Déficit de folato
Deficiencias nutricionales Malabsorcion Aumento de las necesidades Inhibidores del metabolismo de los folatos Aumento de la perdidas
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Fisiopatología
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Manifestaciones clínicas
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Diagnostico
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Diagnostico diferencial
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Tratamiento
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Anemia Megaloblástica por deficiencia
de Vitamina B12
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Vitamina B12
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FUENTE
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REQUERIMIENTO
Necesidades diarias: 2-5 µgr
Reserva corporal: 2-5 mgr
Tiempo de reserva:3-4 años
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Absorción
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TRANSPORTE
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FUNCIONES
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DEFICIENCIA
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ETIOLOGIA DE LA DEFICIENCIA DE VITAMINA B12
# 1Dieta insuficiente
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#2Aumento de los requerimientos
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#3Déficit en la absorción
Imposibilidad para separar la vit B12 de la haptocorrina
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Déficit del Factor Intrínseco de Castle
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Competencia bacteriana
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MANIFESTACIONES CLINICAS
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Manifestaciones Específicas
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• Historia clinica
DIAGNOSTICO
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Extensión de sangreRecuento de neutrófilos
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BILIRRUBINA INDIRECTA
DLH
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MIELOGRAMA
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Determinación de los valores séricos de cobalamina
Concentración:<100pg/ml
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Prueba de Schilling
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Anti-FI
AcFI
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Análisis de la mucosa gástrica
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TRATAMIENTO
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MUCHAS GRACIAS!!!!!!