# Mean Platelet Volume (MPV) Analyzer Analyze Mean Platelet Volume (MPV) in fL, an index of platelet production kinetics. Reference range ≈ 7.5–11.5 fL (lab- and method-dependent). Low MPV (< 7.5 fL, small old platelets) indicates suppressed marrow production (aplastic anemia, chemotherapy/radiation, recent platelet transfusion, iron-deficiency regeneration, Wiskott-Aldrich). High MPV (> 11.5 fL, large young platelets) indicates peripheral destruction with compensatory turnover or macrothrombocytopenia (immune thrombocytopenia ITP, post-splenectomy, myeloproliferative neoplasms, severe sepsis in recovery, Bernard-Soulier / MYH9, megaloblastic anemia; elevated MPV after acute MI marks platelet activation and adverse prognosis). Optionally enter the platelet count to refine the differential: low platelets + high MPV → peripheral destruction; low + low → underproduction; high + low → reactive thrombocytosis; high + high → myeloproliferative neoplasm. Pre-analytical caveat: platelets swell in EDTA over ~2 h raising MPV, and values are method-dependent (impedance > optical > immuno) — compare within the same lab and analyzer. Derived from Bath 1996, Leader 2012, Vagdatli 2010, and MDCalc. Not medical advice. > Canonical page: https://elysiatools.com/en/tools/mean-platelet-volume-analyzer - **Category:** Health - **Keywords:** mean platelet volume, MPV, platelet size, thrombocyte volume, immune thrombocytopenia, ITP, myeloproliferative, essential thrombocythemia, reactive thrombocytosis, hematology, platelet activation ## Overview The Mean Platelet Volume (MPV) Analyzer interprets an MPV value in femtolitres (fL) using an approximate reference range of 7.5–11.5 fL. An optional platelet count refines the pattern, while the result accounts for common laboratory and sample-handling limitations. This tool is for educational use and is not medical advice. ## Inputs - **Mean Platelet Volume MPV (fL)** (number): Mean platelet volume reported by the hematology analyzer, in femtolitres (fL). - **Platelet Count (optional, ×10⁹/L)** (number): Optional platelet count in ×10⁹/L. When provided, the interpretation is refined using the MPV/platelet-count pairing. - **Decimal Places** (number) ## When to use - Interpret an MPV result as low, within the approximate reference range, or high. - Combine MPV with a platelet count to distinguish patterns such as reduced production, peripheral destruction, or reactive thrombocytosis. - Review platelet-size findings while considering the laboratory method, analyzer, and time since EDTA sample collection. ## How it works - Enter the reported MPV in fL. - Optionally enter the platelet count in ×10⁹/L to refine the interpretation. - The analyzer compares MPV with the approximate 7.5–11.5 fL reference range. - The result returns the MPV category and, when available, an interpretation based on the MPV and platelet-count pairing. ## Use cases - Reviewing a complete blood count result alongside the platelet count. - Comparing low-platelet patterns that may reflect underproduction or peripheral destruction. - Checking platelet-size trends when results come from the same laboratory and analyzer. ## Frequently asked questions ### What is a normal MPV range? An approximate reference range is 7.5–11.5 fL, but ranges vary by laboratory and measurement method. ### What does a high MPV indicate? A high MPV reflects larger, often younger platelets and may fit peripheral platelet destruction with compensatory production or macrothrombocytopenia. ### What does a low MPV indicate? A low MPV reflects smaller platelets and may fit reduced marrow platelet production. ### Why enter the platelet count? The platelet count helps refine the pattern: low platelets with high MPV may suggest peripheral destruction, while low platelets with low MPV may suggest underproduction. ### Can sample handling affect MPV? Yes. Platelets can swell in EDTA blood over about two hours, increasing MPV. Compare results using the same laboratory and analyzer when possible. ## Related tools - [Red Cell Distribution Width (RDW) Analyzer](https://elysiatools.com/en/tools/rdw-analyzer): Analyze Red Cell Distribution Width (RDW) with MCV to help differentiate anemias. RDW-CV reference ≈ 11.5–14.5%, RDW-SD ≈ 39–46 fL (lab-dependent). Elevated RDW reflects anisocytosis. Classic Bessman patterns: high RDW + low MCV → iron deficiency anemia (IDA), which raises the RDW early — before MCV/Hb fall; normal RDW + low MCV → thalassemia trait (uniform microcytosis). Other patterns: high RDW + high MCV → megaloblastic anemia (B12/folate), MDS, drugs, hemolysis with reticulocytosis, preleukemia, or mixed populations (combined iron + B12 deficiency, post-transfusion); high RDW + normal MCV → early/mixed nutritional deficiency, dimorphic anemia, marrow recovery; normal RDW + normal MCV → anemia of chronic disease is classically normocytic. Interpret with Hb, ferritin, Hb electrophoresis, and clinical context. Based on Bessman 1983 and Teixeira 2014. 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