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测定孕尿中E_3含量目前被认为是判断胎儿—胎盘单位功能可靠的方法之一。作者于1978年7月～1980年2月采用一种改良Ittuch氏孕尿雌激测定法(具体方法见武汉医药卫生(12);269,1963),在本文中详细介绍了此法所需试剂的制备及其具体操作和标准曲线的制作方法,并通过73例227次尿测定,预测胎儿—胎盘功能。对11例妊娠25～41周的正常妊娠妇女进行114次尿E_3值测定,其尿E_3随着孕龄的进展而逐渐增加。孕34周后增加较快,38周左右达
Determination of urinary E_3 content is currently considered to determine the function of the fetus - placenta reliable one of the ways. The authors used a modified Ittuch’s gestational estrogen assay from July 1978 to February 1980 (see Wuhan Medical and Health Care (12); 269, 1963 for details), and details of the reagents Preparation and its specific operation and the method of making standard curve, and through 73 cases 227 times urinalysis to predict fetal-placental function. 114 cases of normal pregnant women with pregnancy of 25-41 weeks of gestation were tested for urinary E_3 value. Urinary E_3 gradually increased with the progress of gestational age. Increase after 34 weeks of pregnancy faster, up to 38 weeks