Mean corpuscular hemoglobin

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The mean corpuscular hemoglobin (MCH), or "mean cell hemoglobin" (MCH), is the average mass of hemoglobin per red blood cell in a sample of blood. It is reported as part of a standard complete blood count. MCH value is diminished in hypochromic anemias.[1]

It is calculated by dividing the total mass of hemoglobin by the number of red blood cells in a volume of blood.

MCH=(Hgb*10)/RBC [2]

A normal value in humans is 27 to 31 picograms/cell.[1] Conversion to SI-units: 1 pg of hemoglobin = 0.06207 femtomol.[3] Normal value converted to SI-units: 1.68 - 1.92 fmol/cell.

See also[edit]

Worked example[edit]

MeasureUnitsConventional unitsConversion
Hct40%
Hb100 grams/liter10 grams/deciliter(deci- is 10-1)
RBC5E+12 cells/liter5E+6 cells/μL(micro is 10-6)
MCV = Hct / RBC8E-14 liters/cell80 femtoliters/cell(femto- is 10-15)
MCH = Hb / RBC2E-11 grams/cell20 picograms/cell(pico- is 10-12)
MCHC = MCH / MCV250 grams/liter25 grams/deciliter(deci is 10-1)

References[edit]

  1. ^ a b "MedlinePlus Medical Encyclopedia: RBC indices". Retrieved 2009-03-03. 
  2. ^ "Mean Cell Hemoglobin". Retrieved 2009-03-03. 
  3. ^ Praktikum der Hundeklinik (10 ed.). 2006. p. 102. ISBN 3-8304-4141-X. 

External links[edit]

RBS are also found in human batter then wbc