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<title>唐筛、无创、羊穿,该怎么选?</title>
<!-- 孕期专题 · 孕期产检 · 产前筛查(孕期首页「其他妈妈也在搜」→ 查看全部)。2026-11-01 用户:剩下的问题都做成专题页,UI 和文字参考 topic/buji。
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<script>window.TOPIC = {
"slug": "shaicha",
"q": "唐筛、无创、羊穿,该怎么选?",
"eyebrow": "孕期产检 · 产前筛查",
"title": [
"唐筛、无创、羊穿",
"\n",
"该怎么选",
"?"
],
"sub": "一张卡看懂:查什么、准不准、几周做",
"answer": "一般先做<em>唐筛或无创<\/em>筛查;高风险或有指征,听医生做<em>羊穿<\/em>确诊。",
"three": [
{
"b": "筛查≠确诊",
"s": "唐筛、无创只看风险高低,羊穿才是诊断"
},
{
"b": "看准时间窗",
"s": "各有固定孕周,错过就只能换项目"
},
{
"b": "高风险别慌",
"s": "多数高风险最后确诊是正常的"
}
],
"sections": [
{
"type": "cards",
"title": "三种检查一眼看懂",
"en": "AT A GLANCE",
"key": "越准的越贵,羊穿是唯一的确诊手段。",
"tint": true,
"items": [
{
"name": "唐筛",
"verdict": "筛查",
"must": false,
"label": "抽血 · 孕周",
"amt": "15~20",
"unit": "周",
"when": "便宜无创伤,准确度最低"
},
{
"name": "无创 DNA",
"verdict": "筛查",
"must": true,
"label": "抽血 · 孕周",
"amt": "12~22",
"unit": "周",
"when": "21 三体检出率高,费用更高"
},
{
"name": "羊水穿刺",
"verdict": "确诊",
"must": true,
"label": "穿刺 · 孕周",
"amt": "16~22",
"unit": "周",
"when": "结果最准,有很小的流产风险"
},
{
"name": "NT 检查",
"verdict": "必做 B 超",
"must": false,
"label": "B 超 · 孕周",
"amt": "11~13",
"unit": "周",
"when": "看颈后透明层,常和早唐一起"
}
],
"why": {
"q": "无创这么准,为什么还不算确诊?",
"a": "无创查的是妈妈血里的胎儿游离 DNA,大部分来自胎盘,和宝宝本身可能不一致;而且主要只针对 21、18、13 三体。所以无创高风险也要做羊穿确认。"
}
},
{
"type": "vs",
"title": "唐筛和无创怎么挑",
"en": "SCREEN VS NIPT",
"key": "没有高危因素,两种都可以,按需选。",
"tint": false,
"heads": [
"唐筛",
"无创 DNA"
],
"rows": [
{
"name": "方式",
"a": "抽血",
"b": "抽血",
"win": -1
},
{
"name": "准确度",
"a": "较低,假阳性多",
"b": "明显更高",
"win": 1
},
{
"name": "费用",
"a": "便宜,部分地区免费",
"b": "较贵,各地不同",
"win": 0
},
{
"name": "范围",
"a": "21、18 三体和神经管",
"b": "主要 21、18、13 三体",
"win": -1
},
{
"name": "适合",
"a": "无高危因素的孕妈",
"b": "临界风险或不想等",
"win": -1
}
],
"note": "唐筛还能提示开放性神经管缺陷,只做无创的,要靠中孕期 B 超和医生评估补上。"
},
{
"type": "list",
"title": "哪些人建议直接羊穿",
"en": "WHO NEEDS IT",
"key": "有这些情况,医生多会建议产前诊断。",
"tint": true,
"items": [
{
"tag": "年龄",
"tone": "warn",
"b": "预产期时满 35 岁",
"s": "高龄孕妈染色体异常风险升高,可直接咨询产前诊断"
},
{
"tag": "筛查",
"tone": "warn",
"b": "唐筛或无创高风险",
"s": "高风险只说明要进一步查,不等于有问题"
},
{
"tag": "B 超",
"tone": "warn",
"b": "B 超发现结构异常",
"s": "如 NT 增厚等,医生会评估是否穿刺"
},
{
"tag": "家族史",
"tone": "warn",
"b": "生育过或家族有染色体病",
"s": "夫妻一方染色体异常也属于这一类"
},
{
"tag": "去医院",
"tone": "no",
"b": "穿刺后腹痛、出血、流液",
"s": "穿刺后少量不适常见,加重要马上就诊"
}
]
},
{
"type": "check",
"title": "我该做哪一种",
"en": "SELF CHECK",
"key": "选 2 个问题,看看下一步怎么走。",
"tint": false,
"hint": "2 题选完自动出结果,只在本机计算",
"qs": [
{
"q": "预产期时我的年龄",
"opts": [
{
"t": "35 岁以下",
"adv": {
"tone": "k",
"b": "唐筛或无创,按医生建议选",
"s": "没有其他高危因素时两种都可以"
}
},
{
"t": "35 岁及以上",
"adv": {
"tone": "a",
"b": "问医生是否直接产前诊断",
"s": "高龄孕妈一般建议咨询产前诊断"
}
}
]
},
{
"q": "现在有没有这些情况",
"opts": [
{
"t": "都没有",
"adv": {
"tone": "k",
"b": "按时做 NT 和筛查就好",
"s": "记好各项检查的孕周时间窗"
}
},
{
"t": "筛查高风险",
"adv": {
"tone": "a",
"b": "尽快去产前诊断门诊",
"s": "多数高风险最后确诊是正常的"
}
},
{
"t": "B 超异常 / 家族史",
"adv": {
"tone": "a",
"b": "问医生是否需要羊穿",
"s": "这类情况一般不建议只做无创"
}
},
{
"t": "错过唐筛时间",
"adv": {
"tone": "t",
"b": "问医生能否改做无创",
"s": "无创一般孕 12~22+6 周可做"
}
}
]
}
]
}
],
"tools": {
"title": "筛查用得上的工具",
"items": [
{
"id": "chanjianrili",
"why": "记好各项检查时间窗",
"btn": "去看"
}
]
},
"sources": [
"中华医学会妇产科学分会《孕前和孕期保健指南(2018)》:孕 11~13+6 周 NT 检查及早孕期血清学筛查,孕 15~20+6 周中孕期血清学筛查;产前诊断(羊膜腔穿刺)一般在孕 16~22 周",
"国家卫生计生委《孕妇外周血胎儿游离 DNA 产前筛查与诊断技术规范》(2016):适宜孕周为 12+0~22+6 周,目标疾病为 21、18、13 三体;预产期年龄≥35 岁等属于慎用人群;筛查高风险须进行介入性产前诊断确诊",
"原卫生部《产前诊断技术管理办法》:预产期年龄超过 35 周岁、筛查高风险、曾生育染色体异常患儿、B 超可疑异常等属于产前诊断指征",
"血清学筛查假阳性率较高,高风险结果中多数经产前诊断为正常;羊膜腔穿刺属于有创操作,存在较低的流产风险,具体由产前诊断医生评估"
],
"heroAlt": "孕妈妈和医生一起看检查报告,桌上有血样试管和 B 超图",
"color": [
"#2E7CF6",
"46,124,246",
"#EAF2FF"
]
};</script>
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