现已证明母体患各种合并症及异常妊娠时,胎儿肺成熟或延迟或被促进。因此,根据母体疾病的不同,当确定终止妊娠时期时,掌握胎儿肺成熟度常有利于对胎儿的处理。现就正常妊娠与母体患各种疾病时胎儿肺成熟的关系对照说明如下。一、正常妊娠:在正常妊娠过程中,几乎无需测定羊水中肺表面活性物质,但在异常妊娠或伴有合并症时,胎儿肺成熟度却不相同。作者由羊水分离肺表面活性质后,用的是蔗糖密度梯度超离心组分法,可从羊水中分离出与肺表面活性物质极相似的物质。所采取的羊水除因早产住院者外,全部是妊娠经过及所生新生儿均完全正常的羊水。用此 Fetal lungs have been proven to be mature or delayed or promoted when they have been shown to have various comorbidities and abnormal pregnancies. Therefore, depending on the maternal disease, mastery of fetal lung maturity is often beneficial to the treatment of the fetus when it is determined that termination of pregnancy occurs. Now on the normal pregnancy and maternal suffering from various diseases fetal lung maturity control described below. First, the normal pregnancy: In the process of normal pregnancy, almost no need to determine amniotic fluid lung surfactant, but in abnormal pregnancy or with complications, fetal lung maturity is not the same. After the authors isolated the lung surfactant from amniotic fluid, a sucrose density gradient ultracentrifugation component method was used to separate very similar substances from the amniotic fluid in the pulmonary surfactant. Amniotic fluid taken in addition to premature delivery due to hospitalization, all the pregnancy after birth and born newborns are completely normal amniotic fluid. Use this