Emergency: How to handle positive Down syndrome

Patient's question:

Patient Gender: Female
Detailed Medical Condition and Purpose of Consultation: At 18 weeks, a screening test for Down syndrome was positive but no specific value was provided. A follow-up test showed it was negative. The coefficient risk was 1/329. The hCG MoM was 8.61, which is elevated. The doctor recommended amniocentesis, but the patient has a history of spontaneous abortion and has taken medication to prevent miscarriage. Now at 20 weeks, she is experiencing abdominal pain and is afraid of another miscarriage. What should she do?

Doctor's answer:

Hello: You should have an amniocentesis after your abdominal pain improves. If it is confirmed to be Down syndrome, terminate the pregnancy in a timely manner.