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Mean Corpuscular Volume




In patients with anemia, it is the MCV measurement that allows classification as either a microcytic Anemia (MCV below normal range) or macrocytic anemia (MCV above normal range).

It can be calculated by multiplying the Hematocrit percentage by ten, and dividing the product by the RBC ( Red Blood Cell ) count. The result is typically reported in femtolitres.

If the MCV was determined by automated equipment, the result can be compared to RBC morphology on a Peripheral Blood Smear . Any deviation would be indicitive of either faulty equipment or technician error.

The normal range is typically 80-96 fl. In , the MCV may be low even though the patient is not iron deficient.


REFERENCES

# Tonnesen H, Hejberg L, Frobenius S, Andersen JR. Erythrocyte mean cell volume--correlation to drinking pattern in heavy alcoholics. Acta Med Scand. 1986;219(5):515-8. PMID 3739755


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