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Red Blood Cell Indices. Red blood cell indices . Red blood cell indices : are measurement that describe the size and oxygen carrying protein (HB) content of red blood cells . The indices are used to help in the differential diagnosis of anemia . 1-Mean Corpuscular Volume .

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## Red Blood Cell Indices

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**Red blood cell indices**Red blood cell indices :are measurement that describe the size and oxygen carrying protein (HB) content of red blood cells . The indices are used to help in the differential diagnosis of anemia .**1-Mean Corpuscular Volume**The MCV is the average volume of the RBC in femtoliters MCV = HCT *10/RBC count Cells of normal size (MCV is 80-100 fl) are called Normocytic smaller cells are Microcytic and larger called are Macrocytic**2- Mean Corpuscular Hemoglobin**The MCH is the average weight of Hb in an RBC ,units is picograms MCH =Hb *10/RBC count The normal range for adults is (28-32 pg ) The MCH is not generally considered in the classification of anemia**3-Mean Corpuscular Hemoglobin concentration**The MCHC is the average concentration of Hb in ,each individual erythrocyte,the units are g/dl MCHC=Hb *100/Hct Values of Normochromic cells range from 32 to 37 g/dl ,those hypochromic cells are less than 32g/dl ,and those of hyperchromic cells greater than 37g/dl**Because there is aphysical limit the amount of Hb that can**fit in cell there is no hyperchromic category ,

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