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本文研究目的是了解妊娠期间母儿甲状腺功能关系及对胎儿生长发育的影响，利用放射免疫法和免疫放射法测定了１６９ 例妊娠中、晚期正常孕妇及胎儿的血清Ｔ３，Ｔ４ ，ＴＳＨ，ＦＴ３ ，ＦＴ４，ｒｔ３ 值，并记录胎儿体重。根据测定数据得出如下结论：１－ 正常妊娠中晚期母儿间的甲状腺系统没有显著联系，并且，孕中晚期母体甲状腺功能胎儿体重生长没有显著影响。２－ 胎儿甲状腺激素中Ｔ４ 、ＦＴ３ 、ＦＴ４ 与胎儿体重生长呈正相关，ｒＴ３ 与胎儿体重生长呈负相关。
The purpose of this study is to understand the relationship between thyroid function during pregnancy and fetal growth and development, using radioimmunoassay and immunoradiometric assay of 169 cases of pregnant women with normal late pregnancy and fetal serum T3, T4, TSH, FT3, FT4, rt3 values, and record fetal weight. According to the measurement data, the following conclusions can be drawn: 1 - There is no significant correlation between the thyroid system in the middle and late stages of normal pregnancy, and there is no significant effect on fetal weight gain in the second trimester of pregnancy. Fetal thyroid hormones T4, FT3, FT4 and fetal weight growth was positively correlated, rT3 and fetal weight growth was negatively correlated.