Patient's question:
Where can non-invasive prenatal DNA testing technology be performedDoctor's answer:
Hello, non-invasive prenatal genetic testing involves collecting 5ml of maternal peripheral blood, extracting free-floating DNA, using next-generation high-throughput sequencing technology, and combining bioinformatics analysis to determine the risk of fetal chromosomal aneuploidy (21-trisomy, also known as Down syndrome, 18-trisomy, and 13-trisomy). The optimal testing time for this method is in the early to mid-pregnancy, and it features non-invasive sampling, no risk of miscarriage, high sensitivity, and high accuracy. Amniotic fluid cytology can also be performed at 24 weeks. If the doctor's expertise is truly high, umbilical cord puncture can also be an option.