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红细胞分布范围(RDW)是表明红细胞大小变化的指标,它可以通过自动分析仪器测得,以标准差或变异系数(％)表示,RDW多表现网状细胞的状态,血液丢失也可表现为网状细胞增加,妊娠期在20周时由于血容量大量增加,使网状细胞增加,分娩时血液丢失也可使网织细胞反射性增加。本文首次系统分析妊娠期间RDW的变化。方法:对121例平均年龄29岁(16～40岁),单胎妊娠,血色素≥11.0 g/dl的健康妇女,在监护期间直至产后7 d口服铁剂。妊娠16～34周,分娩
RDW is an indicator of changes in red blood cell size. It can be measured by automatic analyzer and expressed as standard deviation or coefficient of variation (%). RDW mostly shows the state of reticulocytes. Blood loss can also be expressed as net Like cells increase, gestational weeks at 20 weeks due to a substantial increase in blood volume, increased reticular cells, blood loss during childbirth can also make reticulocyte reflex increased. This is the first systematic analysis of changes in RDW during pregnancy. METHODS: A total of 121 healthy women, mean age 29 years (16 to 40 years), singleton pregnancy, and hemoglobin ≥11.0 g / dl, were given oral iron during the custody period until 7 days after delivery. 16 to 34 weeks of pregnancy, childbirth