Red Cell Indiceshttp://www.lrc.arizona.edu/webpath2/TUTORIAL/HGB/RBCMORPH.HTM
Mean Corpuscular Hemoglobin (MCH) = Hgb ÷ RBC count
The MCH is calculated and gives the average mass of Hgb in an individual RBC; the unit is a picogram
Mean Corpuscular Hemoglobin Concentration (MCHC) = Hgb ÷ Hct
The MCHC is calculated and provides a measure of the concentration of Hgb in the cells