A member asked:

Dad has low hemo rbc hemat since 2011. got worse. can he still have iron def even if mcv is normal. doc never gave ferritin test. b12/folate normal.

A doctor has provided 1 answer
Dr. Geoffrey Rutledge answered

Specializes in Internal Medicine

Microcytic anemia: Iron deficiency causes a "microcytic anemia", meaning the red blood cells are smaller (measure by the mean corpuscular volume or MCV). If there is simultaneously a macrocytic anemia, which can be caused by low folate or low B12, then the average MCV could be normal but there would be both smaller and larger cells (and the spread of cell sizes, measured by the RDW would go up).

Answered 11/27/2017

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