blood cell indices – MCV, MCH, and MCHC. The mathematical calculations used to obtain the red blood cell indices can be found in any hematology textbook. At the time, because of the lack of calculators and analyzers that calculate the indices automatically, laborious manual calculations needed to be
Students should be able to calculate the following secondary indexes: mean corpuscular/cell volume (MCV), mean corpuscular/cell hemoglobin concentration (MCHC), and mean corpuscular/cell hemoglobin (MCH) from the primary indexes (hematocrit and hemoglobin concentration) and use these calculations to understand the diagnosis of different types
Mean Corpuscular Hemoglobin (MCH) is the average weight of hemoglobin in an average red blood cell. MCH correlates with the MCV results. This index is of value in diagnosing severely anemic patients. The MCH is obtained by dividing the hemoglobin by the red cell count. A simple formula can be used to calculate this value:
The normal MCHC for GBC is usually 32 to 36 grams per deciliter (g/dl) or 320 to 360 grams per liter (g/l). An MCHC higher than the generally accepted value may indicate the presence of anemia. This means a low red blood cell count, but the physician can certainly order additional diagnostic tests.
MCV = mean corpuscular volume HCT/RBC count= 80-100fL • small = microcytic • normal = normocytic • large = macrocytic MCH= mean corpuscular hemoglobin Hb/RBC count= 27-34 pg • decreased = hypochromic • normal = normochromic • Increased = hyperchromic MCV and MCHC •
hemoglobin, hematocrit, and red blood cells count, MCH (29.42), MCV (92.95), and MCHC for the diagnosis of presence or absence of anemia and Table 1. Mean age, weight, height, the blood pressure
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how to calculate mcv mch mchc
