辨識唐氏症跡象的第一步是觀察日常行為

唐氏症的嬰兒通常會有較慢的動作反應，例如對聲音或觸碰的反應較遲緩。觀察時應注意嬰兒是否能追視移動的物體，或是否能抓握玩具。這些細節有助於初步判斷是否需要進一步檢查。 唐氏症的嬰兒可能有特殊的面部特徵，如眼距較寬、鼻梁較低、舌頭較大等。此外，他們的肌張力通常較低，導致動作較慢或姿勢不穩。這些特徵可作為初步判斷的參考。 若發現嬰兒有疑似唐氏症的跡象，應盡快與醫生或遺傳諮詢師溝通，進行進一步的檢查，如染色體分析。專業評估能提供更準確的診斷，並幫助家庭做好準備。

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参考资料

1. https://www.ndss.org/about-down-syndrome/down-syndrome/
2. https://www.webmd.com/children/understanding-down-syndrome-basics
3. https://www.nichd.nih.gov/health/topics/down/conditioninfo/Pages/diagnosed.aspx
4. https://www.parents.com/health/down-syndrome/are-you-at-risk-of-having-a-baby-with-down-syndrome/
5. https://www.nlm.nih.gov/medlineplus/ency/article/003298.htm
6. https://adc.bmj.com/content/87/2/97.full
7. https://www.babycenter.com/average-fetal-length-weight-chart
8. https://www.downs-syndrome.org.uk/about-downs-syndrome/health-and-wellbeing/bones-and-muscles/
9. https://www.dailymail.co.uk/femail/article-2791179/shorter-pant-legs-wider-fit-no-buttons-zippers-fashion-lines-designed-specifically-people-syndrome.html
10. https://www.webmd.com/children/understanding-down-syndrome-symptoms
11. https://www.medicinenet.com/hypermobility_syndrome/article.htm
12. https://noahsdad.com/physical-characteristics/
13. https://www.ndss.org/resources/vision-down-syndrome/
14. https://www.ndss.org/resources/the-heart-down-syndrome/
15. https://www.down-syndrome.org/en-us/library/news-update/03/2/hearing-disorders-down-syndrome/
16. https://www.ndss.org/resources/mental-health-issues-syndrome/
17. https://www.cancer.org/cancer/types/leukemia-in-children/causes-risks-prevention/risk-factors.html
18. https://www.alz.org/dementia/down-syndrome-alzheimers-symptoms.asp