Thursday, March 19, 2015

Mean Corpuscular Hemoglobin (MCH)




MCH calculated from measured values of Hb and RBC; ie, MCH = Hb/RBC. A low MCH can mean hypochromia or microcytosis or both. A high MCH is evidence of macrocytosis.

Normal Range: 26-34 pg

increased in: Macrocytosis. 

Decreased in: Microcytosis (iron deficiency, thalassemia). Hypochromia (lead poisoning, sideroblastic anemia, anemia of chronic disease).

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