Thursday, March 19, 2015

Mean Corpuscular Hemoglobin Concentration (MCHC)


MCHC describes how fully the erythrocyte volume is filled with hemoglobin and is calculated from measurement of hemoglobin (Hb), mean corpuscular corpuscular volume (MCV) and red cell count (RBC); ie, MCHC = Hb/MCV x RBC. 


Normal Range: 31-36 g/dL

increased in: Marked spherocytosis. Spuriously increased in autoagglutination, hemolysis (with spuriusly high Hb or low MCV or RBC), lipemia. Cellular dehydration syndromes, xerocytosis.
 
Decreased in: Hypochromic anemia (iron deficiency, thalassemia, lead poisoning), sideroblastic anemia, anemia of chronic disease. Spuriously decreased in high WBC (with spuriously low Hgb or high MCV or RBC).

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