Mean corpuscular volume (MCV)

Average red blood cell size; helps classify anemia as microcytic, normocytic, or macrocytic.

Mean Corpuscular Volume (MCV) Biomarker Test

MCV measures the average size of your red blood cells, reported in femtoliters. It is part of a Complete Blood Count (CBC) and calculated from hematocrit and red blood cell count. Low MCV (microcytosis) signals small cells, often from iron deficiency or thalassemia traits. High MCV (macrocytosis) signals large cells, often from vitamin B12 or folate deficiency, alcohol use, liver disease, hypothyroidism, reticulocytosis, or medications. Because red cells live about 120 days,MCV shifts gradually as new cells enter circulation, making it reliable for tracking trends. Interpreted with hemoglobin, hematocrit, RDW, MCH, and MCHC, MCV helps pinpoint root causes of anemia and clarify oxygen transport efficiency. ‍

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Blood / CBC

2/year

Mean corpuscular volume (MCV)

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