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Mean platelet volume (MPV) is a machine-calculated measurement of the average size of platelets found in blood and is typically included in blood tests as part of the CBC. Since the average platelet size is larger when the body is producing increased numbers of platelets, the MPV test results can be used to make inferences about platelet production in bone marrow or platelet destruction problems.〔(), Lab Tests Online.〕 MPV is higher when there is destruction of platelets. This may be seen in inflammatory bowel disease, immune thrombocytopenic purpura (ITP), myeloproliferative diseases and Bernard-Soulier syndrome. It may also be related to pre-eclampsia, and recovery from, transient hypoplasia.〔(), Arch Pathol Lab Med. Vol 133, September 2009;1441-43..〕 Abnormally low MPV values correlate primarily with thrombocytopenia when it is due to impaired production as in aplastic anemia. A typical range of platelet volumes is 9.7–12.8 fL (femtolitre), equivalent to spheres 2.65 to 2.9 µm in diameter. Normal range is given as 7.5-11.5 fL. ==External links== * (MPV Definition ) * () Medicinenet.com: Thrombocytopenia * () Diabetesexplained.com: MPV * () ahajournals.org: Article related to MPV * (): NIH.gov: article related to MPV * () Wisegeekcom: What is Mean Platelet Volume * () Clinlabnavigator.com: MPV 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Mean platelet volume」の詳細全文を読む スポンサード リンク
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