14-28 Sysmex XP-300
Technical Information
Revised October 2012
Calculation of RBC constant
RBC constant (mean RBC volume, mean RBC hemoglobin, mean RBC hemoglobin concentration) is
calculated from RBC, HGB, and HCT.
1. Mean RBC Volume (MCV)
Calculation is made from RBC and HCT by the formula below:
2. Mean RBC Hemoglobin (MCH)
Calculation is made from RBC and HGB by the formula below:
3. Mean RBC Hemoglobin Concentration (MCHC)
Calculation is made from HCT and HGB by the formula below:
MCV (fL) =
HCT (%)
RBC (×10
6
/µL)
×10
MCH (pg) =
HGB (g/dL)
RBC (×10
6
/µL)
×10
MCHC (g/dL) =
HGB (g/dL)
HCT (%)
×100
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