Does high risk in the Down syndrome screening require amniocentesis?

Patient's question:

Hello everyone! I would like to ask if a Down syndrome screening composite of 1:336 is high? The paper says it is high risk. Is it necessary to do further amniocentesis?

Doctor's answer:

If the comprehensive evaluation of the Down syndrome screening is high-risk, it is recommended that you further undergo non-invasive DNA testing. The results of non-invasive DNA testing are relatively comprehensive. If, in addition to the high-risk result from non-invasive DNA testing, further amniocentesis is performed, there is generally a 5% risk of miscarriage. It is recommended that you do not have too much pressure and always maintain a relaxed mood. Wishing the patient a speedy recovery!

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