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为适应妊娠要求女性器官妊娠时有显著生理变化,其中血浆容量明显增加,而致红细胞增加相对较少,血液稀释,使血浆对营养物的运载能力增加及全血粘滞性降低。孕妇血红蛋白(Hb)高值反应血浆容量相对减少,故曾有正常妊娠伴发IUGR和产前胎死宫内的报道。因为孕妇 Hb 值与血浆容易呈密切的反相关,故作者认为须研究表面正常的无贫血孕妇 Hb 浓度与相应孕期出生体重间的关系。
In order to meet the pregnancy requirements of female organs during pregnancy significant physiological changes, including plasma volume increased significantly, while relatively little increase in red blood cells caused by hemodilution, plasma nutrients to carry capacity and reduce whole blood viscosity. Pregnant women with high hemoglobin (Hb) response to the relative decrease in plasma volume, so there was a normal pregnancy with IUGR and prenatal fetal death report. Because pregnant women with Hb values and plasma is closely related to the inverse, so the author believes that the normal surface of the anemia-free pregnant women to study the relationship between Hb concentration and the corresponding birth weight.