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胎心监护的必要性是什么?怀孕多少周做胎心监护?
胎心监护的必要性是什么?怀孕多少周做胎心监护?
2020-07-20
胎心胎动宫缩图的简称就是胎心监护,胎心监护的曲线,能够反映胎动和宫缩时胎心的变化,医生就能判断胎儿宫内是否缺氧,所以孕期做胎心监护是很有必要的。
如何看胎心监护?
胎心监护单上有两条线,下面一条是宫缩压力,子宫收缩时才会升高。上面一条线是胎心率。
正常胎心率是120-160次/分,基础胎心是一条波形的直线。胎动时胎心率线会上升,形成向上凸起的曲线。胎动结束胎心率线会逐步的下降恢复如初,正常的胎心音是有节奏的,像钟表的滴答声。
胎心率低于120或者是超过160,胎心过低和过快都是不正常的,胎儿宫内缺氧。打催产素,孕妇情绪,患甲亢,服用药物等等因素,也会引起胎儿胎心加快,出现宫内窘迫现象。
胎心异常医生会安排重做胎心监护,如果胎儿严重缺氧,那么需要紧急剖腹产。
胎心监护多少周做?
胎心监护一般是孕32-34周开始做,胎心监护不需要预约,产检的时候医生会开单,费用是40-80元不等。
有合并或者是并发症状或者是脐带绕颈圈数过多的孕妇,胎心监护提前到孕28-30周做。
孕32-34周:胎心检测,产前检查,尿常规
孕34-36周:胎心检测,产前检查,尿常规
孕37周:胎心检测,产前检查,尿血常规,肝肾功能,建议B超,心电图
孕38周:胎心检测,产前检查,尿常规
孕39周:胎心检测,产前检查,尿常规,建议B超
孕40周:胎心检测,产前检查,尿常规
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