Mean cell volume
Mean cell volume (MCV) is a measure used in hematology to express the average volume of a red blood cell. This measurement is part of a standard complete blood count (CBC) and is used in the diagnosis and monitoring of various diseases and conditions.
Calculation[edit | edit source]
The MCV is calculated by dividing the total volume of packed red blood cells (also known as hematocrit) by the total number of red blood cells. The result is expressed in femtoliters (fL).
Normal range[edit | edit source]
The normal range for MCV varies slightly between laboratories but is generally between 80 and 100 fL in adults. Values outside this range may indicate various medical conditions.
High MCV[edit | edit source]
A high MCV (macrocytosis) can be a sign of vitamin B12 deficiency, folate deficiency, alcoholism, or certain medications. It can also be associated with liver disease and hypothyroidism.
Low MCV[edit | edit source]
A low MCV (microcytosis) is often associated with iron deficiency anemia, thalassemia, and chronic disease anemia.
Clinical significance[edit | edit source]
MCV is a useful tool in the diagnosis and monitoring of anemia and other blood disorders. It can help differentiate between different types of anemia and can provide clues about the underlying cause of a patient's symptoms.
See also[edit | edit source]
- Red blood cell distribution width
- Mean corpuscular hemoglobin
- Mean corpuscular hemoglobin concentration
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Contributors: Prab R. Tumpati, MD
