Critical risk issue genetic problem?

Patient's question:

21-trisomy syndrome Risk value 1;290
Screening result critical risk 18-trisomy syndrome risk value is 1 compared to 1700.

Doctor's answer:

Hello, do you want to check if there are any hereditary and genetic diseases in the family.
Guiding Suggestions:
If you are still not at ease, you can have an amniocentesis. Pay attention to your diet and rest during this period.