A high mean corpuscular volume, or MCV, indicates that a person's red blood cells have a larger average size than normal. An MCV level that is above average is called macrocytosis. More »

A high MCV means the red blood cells are larger than they should be, while a high RDW means there is a mix of large and small red blood cells, states the American Association for Clinical Chemistry. MCV and RDW are not s... More »

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According to Medscape, some of the most common reasons why MCV would be high in a blood test include liver disease, anemia, excessive alcohol intake, hypothyroidism and myelodysplastic syndrome. Each of these conditions ... More »

A raised MCV, or mean corpuscular volume, means the red blood cells are larger than they should be, explains the American Association for Clinical Chemistry. Counting red blood cells and measuring their size helps diagno... More »

A low mean corpuscular volume (MCV) indicates that the size of a person's red blood cells is below average, and a low mean corpuscular hemoglobin (MCH) measurement indicates a person's blood has low hemoglobin levels. More »

Because mean corpuscular volume, or MCV, measures the size of a patient's red blood cells, or RBCs, a low MCV number indicates smaller-than-normal RBCs. Small RBCs indicate a condition known as microcytic anemia, which h... More »

A high MCV means the red blood cells are larger than they should be, while a high RDW means there is a mix of large and small red blood cells, states the American Association for Clinical Chemistry. MCV and RDW are not s... More »

www.reference.com Health Medical Ranges & Levels