Pregnant women with chromosomal abnormalities cannot undergo non-invasive DNA testing?

Patient's question:

A chromosomal abnormality was detected, and it has also been confirmed. I don't know why, but can pregnant women with chromosomal abnormalities not undergo non-invasive DNA testing?

Doctor's answer:

Mother has chromosomal abnormalities and has always had a high risk, suggesting amniocentesis. The accuracy of the Down syndrome screening is only about 70%, so it's unnecessary to perform it for high-risk pregnancies; prenatal diagnosis should be conducted directly. Irregular prenatal check-ups. Chromosomal abnormalities have a significant impact on the child, and it is recommended that the family take the child to a specialist for follow-up diagnosis and treatment under the guidance of a doctor. In daily life, enough care and attention can be given to the child, with a focus on dietary issues, hoping that the child can recover as soon as possible!

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