What is the correlation between destruction of parietal cells and Vit B12 deficiency?

Question Teri goes to see her PCP after feeling depressed last couple of months as well as experiencing a seizure earlier this week. The physician orders a few test, results are shown below: Low hematocrit Low levels of Vit B12 Low Oxygen levels Presence of autoantibodies against the parietal cell Peripheral blood smear shows abnormal […]