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Multiple Choice

Mean Corpuscular Volume (MCV) normal range is?

Mean corpuscular volume measures the average size of red blood cells and is expressed in femtoliters. A normal range is about 80 to 100 fL. Values below 80 fL indicate microcytosis (smaller than normal cells), which you see with iron deficiency or thalassemia. Values above 100 fL indicate macrocytosis (larger than normal cells), seen with B12 or folate deficiency, alcoholism, liver disease, or hypothyroidism. Knowing the MCV helps categorize the type of anemia and guides the next steps in workup. The standard normal range in most labs is 80–100 fL.

Mean corpuscular volume measures the average size of red blood cells and is expressed in femtoliters. A normal range is about 80 to 100 fL. Values below 80 fL indicate microcytosis (smaller than normal cells), which you see with iron deficiency or thalassemia. Values above 100 fL indicate macrocytosis (larger than normal cells), seen with B12 or folate deficiency, alcoholism, liver disease, or hypothyroidism. Knowing the MCV helps categorize the type of anemia and guides the next steps in workup. The standard normal range in most labs is 80–100 fL.