CBC system

MCV · Mean Corpuscular Volume

MCV

The average size of your red blood cells.

What is it

MCV · Mean Corpuscular Volume — in plain English.

MCV measures the average size of red blood cells. It helps classify anemia by red cell size (microcytic, normocytic, macrocytic).

Why it's measured

What MCV can reveal.

MCV has been used in classifying anemia type and identifying nutrient deficiencies in research and clinical practice.

Reference range

Where most laboratories draw the standard line.

Standard laboratory reference

80 – 100 fL

Reference ranges vary by laboratory. Your individual reference range will appear on your test report and should be interpreted by your physician in the context of your overall health profile.

What results may indicate

Higher vs. lower MCV — at a high level.

Elevated

Has been associated with B12/folate deficiency and certain conditions in research literature.

Lower

Has been associated with iron deficiency and certain hemoglobin disorders in research literature.

These associations are general. They are not a personal diagnosis or prediction. Discuss your individual results with your physician in the context of your full health profile.

When it's measured

When MCV is typically run.

Part of standard CBC.

Related markers

Often measured alongside MCV.

Measured in

MCV is one of 160 biomarkers in the Apex Panel.

A complete look at your heart, hormones, metabolism, inflammation, and longevity systems — drawn at Quest or LabCorp, reviewed by a U.S.-licensed physician.

Explore the Apex Panel
160 biomarkers13 body systemsPhysician-reviewed
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This information is for general educational purposes only and is not medical advice. Lab results alone are not intended to diagnose, treat, or cure any condition and do not replace the advice of a healthcare provider. OPTML does not offer medical advice, a diagnosis, medical treatment, or any form of medical opinion.