Causes of Vit B12 Macrocytic anaemia Flashcards

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1
Q

What are the Dietary intake causes of Vitamin B12 deficiency?

A

Veganism

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2
Q

What are the causes of Stomach impaired absorption?

A

Pernicious Anaemia
Congenital deficiency of Intrinsic Factor
Gastrectomy

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3
Q

What are the causes of Small bowel impaired absorption?

A

Ileal disease or resection
Bacterial overgrowth
Tropical Sprue
Fish Tapeworm (Diphyllobothrium latum)

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4
Q

What are the causes of abnormal utilization of Vitamin B12?

A
Congenital Transcobalamin II deficiency
Nitrous Oxide (Inactivates B12)
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