Information about a laboratory test

MPV: What Does This Blood Test Measure?

Measures the average size of platelets.

Test summary

Test name
MPV
Abbreviations
MPV
Category
Hematology / Coagulation
Panel
Platelet Indices / Hemogram
Specimen
Whole blood
Common units
fL

What does the test measure?

Measures the average size of platelets.

Why is the test ordered?

Provides additional information about platelet production and platelet size when interpreted with the platelet count.

Information about a low result

A low MPV means platelets are smaller on average and may occur in some conditions involving platelet production or other clinical contexts.

Information about a high result

A high MPV means platelets are larger on average and may occur when a greater proportion of younger platelets is circulating.

Reference and clinical context

Use the reference interval printed on your own laboratory report first. Reference intervals may vary by laboratory, method, unit, age, sex, pregnancy, specimen, and other conditions. Numeric records in this workbook are explicitly labeled as either source-based example reference intervals or clinical decision cutoffs.

Reference ranges may vary by laboratory, method used, age, sex, pregnancy status, and clinical context. The reference range on your own laboratory report takes precedence.

Interpretation notes

MPV does not establish a diagnosis on its own and should be interpreted with the platelet count and clinical context. Age, sex, and lifestyle factors may also affect the value.

Related specialties

  • Hematology
  • Internal Medicine

Frequently asked questions

Sources

  1. MPV Blood Test — U.S. National Library of Medicine (MedlinePlus)

    Government medical reference · 2024 · MPV interpretation together with platelet count · Verified: Aug 11, 2026