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孕期重要的5项检查
一: .NT检查(12-13周)
主要是通过B超检查胎儿颈后透明厚度,如果NT值小于2.5mm,则表明胎儿是正常健康的。
二: 唐氏筛查(16-19周)
抽血检查胎儿染色体是否有问题,唐氏筛查淮确率是50-60%,无创DNA准确率是99%,二选一就可以。
三:大排畸 (20-23周)
通过三维或者四维彩超排查胎儿是否存在结构性缺陷。
四: 糖尿病筛查(21-28周)
血检对孕妈进行妊娠期糖尿病筛查,确认是否有糖尿病。
五:小排畸(28-37周)
B超对胎儿畸形进行进一步筛查,检查胎儿生长发育情况和胎位情况,检查胎儿是否有生长受限,羊水及胎儿营养健康情况。