Mam I am 32 years old. had my NT NB
Needs further investigation.
Thanks for trusting us about your healthcare .
I have gone through your history and understand your concern.
As your baby down syndrome risk is high in your test(358) report Your doctor advice you to do amniocentesis ( invasive procedure) to rule out the possibility of down syndrome in your baby as it is a confirmatory test for the same.
You have to go for second level ultrasound also.
Hope found useful, feel free to ask more information.