PA can be distinguished from folate deficiency by the:
a. Presence of hypersegmented neutrophils
b. Mean cell volume (MCV)
c. Bone marrow findings
d. Presence of autoantibodies to IF
ANS: D
Both PA and folate deficiency have an elevated MCV, the presence of hypersegmented neutrophils, and megaloblastic bone marrow findings. However, only PA has autoantibodies to IF present.
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