A 52-yr-old patient has a new diagnosis of pernicious anemia. The nurse determines that the patient understands the teaching about the disorder when the patient states,

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Because pernicious anemia prevents the absorption of vitamin B₁₂,this patient requires injections or intranasal administration of cobalamin. Alcohol use does not cause cobalamin deficiency. Proton pump inhibitors decrease the absorption of vitamin B₁₂. Eating more foods rich in vitamin B₁₂ is not helpful because the lack of intrinsic factor prevents absorption of the vitamin.

A 52-Yr-Old Patient Has a New Diagnosis of Pernicious Anemia