近十年,测定尿雌三醇排泄量常用为估计胎盘功能和预测胎儿窘迫的措施。最近采用放射免疫法测定血浆雌三醇则更为方便。资料报道血浆雌三醇含量昼夜无明显波动,亦不受饮食、运动和休息的影响。本文报道连续测定估计有宫内胎儿发育迟缓者的血浆雌三醇,发现妊娠高血压伴有低体重胎儿患者的血浆雌三醇的平均曲线,在孕期前30周与正常曲线无异,但在30周后不继续上升,呈水平线直至足月。正常血压伴有低体重胎儿者,其血浆雌三醇的平均曲线在妊娠30周前偏低,位于低标准差异曲线 Nearly a decade, urinary estriol determination of urinary excretion is commonly used to estimate placental function and predict fetal distress measures. The recent use of radioimmunoassay of plasma estriol is more convenient. Data reported plasma estriol content no significant fluctuations in day and night, nor by diet, exercise and rest. This paper reports the continuous determination of plasma estriol estimated to have intrauterine fetal retardation and found that the mean curve of plasma estriol in pregnancy-induced hypertension with low-birth-weight fetuses was similar to the normal curve in the first 30 weeks of pregnancy but was Do not continue to rise after 30 weeks, was horizontal until full-term. Normal blood pressure associated with low birth weight fetus, the average curve of plasma estriol in pregnancy 30 weeks before the low, located in the low standard deviation curve