When does pernicious anemia NOT occur?
A) when the stomach has been removed
B) when the colon has been removed
C) when there is a deficiency of intrinsic factor

Question

Quizplus · Accepted Answer

Pernicious anemia is caused by a deficiency of intrinsic factor, which is produced in the stomach and is necessary for the absorption of vitamin B12. If the stomach has been removed, intrinsic factor cannot be produced, leading to pernicious anemia. However, the colon does not play a role in the absorption of vitamin B12, so its removal does not affect the occurrence of pernicious anemia.

When Does Pernicious Anemia NOT Occur