試題詳解

105. A 45-year-old male stomach cancer patient underwent tumor removal surgery. After surgery, he developed megaloblastic anemia. His anemia is caused by a deficiency of X and can be treated with Y.
(A)X = intrinsic factor； Y = folic acid.
(B)X = intrinsic factor； Y = vitamin B12
(C)X = extrinsic factor； Y = parenteral iron
(D)X = extrinsic factor； Y = sargramostim