MPV (Mean Platelet Volume) is a blood test that measures mpv (mean platelet volume) levels in the blood. Normal range: MPV is typically about 7-12 fL. Younger, freshly made platelets are larger, so MPV mainly indicates how actively the bone marrow is producing platelets — most useful when read together with the platelet count.. It is commonly used to provides information about platelet production and function, with implications for cardiovascular and inflammatory condi...
What is MPV (Mean Platelet Volume)?
The average size of platelets in the blood.
Why is it measured?
Provides information about platelet production and function, with implications for cardiovascular and inflammatory conditions.
Normal Reference Range
MPV is typically about 7-12 fL. Younger, freshly made platelets are larger, so MPV mainly indicates how actively the bone marrow is producing platelets — most useful when read together with the platelet count.
Note: Reference ranges may vary between laboratories. Always consult your healthcare provider for interpretation.
What Causes High MPV?
A high MPV means the bone marrow is releasing large, young platelets, usually because platelets are being destroyed or used up quickly and the marrow is compensating — as in immune thrombocytopenia (ITP). It is also seen in myeloproliferative disorders and has been associated with cardiovascular risk. A high MPV with a low platelet count generally points to a destruction problem rather than a production failure.
What Causes Low MPV?
A low MPV means platelets are small, which typically reflects reduced or impaired production by the bone marrow — for example, marrow suppression, aplastic anaemia, or certain inherited conditions. A low MPV with a low platelet count suggests the marrow is not making platelets properly.
How Often Should MPV Be Tested?
MPV is reported automatically with the platelet count in a full blood count and is not ordered separately. It is used to help interpret an abnormal platelet count — distinguishing a destruction problem (high MPV) from a production problem (low MPV).
Related Blood Markers
MPV is interpreted alongside the platelet count, and within the full blood count when multiple cell lines are abnormal. A blood film helps assess platelet size and clumping directly.
Key Facts
- •Category: Blood Health
- •Unit of Measurement: fL
- •Test Code: MPV
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