Is the critical risk of the Down syndrome screening serious?

Patient's question:

Here are the translations for the provided text:
"8 days before the 16th week screening results showed borderline risk with a risk value of 1; 471 high risk 1; 270. Is this very serious?"

Doctor's answer:

Disease Analysis: What is the risk of this disease? Detailed test report is required.
Guidance: Go to the hospital for genetic counseling with the Down syndrome screening report and provide a detailed test report, which can be uploaded by taking a photo. If the current gestational age is less than 21 weeks, undergo a repeat Down syndrome screening first, paying attention to providing accurate personal information. If the repeat results still show a high risk rate, a chromosome test via amniocentesis is required. Regularly visit the hospital for prenatal check-ups to monitor fetal development. Pay attention to a balanced diet during pregnancy, avoid smoking and alcohol, do not take any medication casually, and minimize or avoid exposure to radiation.