What causes the atrophy of gastric mucosal cells that result in pernicious anemia? A) Erythrocyte destruction B) Folic acid malabsorption C) Vitamin B₁₂ malabsorption D) Poor nutritional intake

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Deficiency in intrinsic factor (IF)secretion may be congenital or may result from adult onset gastric mucosal atrophy and the destruction of parietal cells.In older adults,virtually all vitamin B₁₂-deficiency anemia is caused by a failure of IF-related absorption.This selection is the only option that accurately identifies the cause of gastric mucosal cell atrophy.

What Causes the Atrophy of Gastric Mucosal Cells That Result