A member asked:

Rdw 16.2,mch 24.4,mchc31.9,hb11.9,ferritin 24 ng/ml,iron 63 ug/dl,tibc 360ug/dl,b12 429pg/ml.y is rdw high.no thalesemia, previos values normal.

A doctor has provided 1 answer
Dr. James Blachly answered

Specializes in Medical Oncology

Iron deficiency: RDW likely high because some cells are normal size, and some are abnormal (probably small). The ferritin and TIBC suggests possible iron deficiency - a low MCV (not listed) with negative history of thalassemia would help clench it. Rarer causes could be copper deficiency, vitamin B6 deficiency, or heavy metal poisoning (lead).

Answered 10/24/2017

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