Prenatal screening gives parental reassurance (if normal).

Screening followed by diagnosis may allow women to undertake a pregnancy they might not have otherwise undertaken.

If abnormality is detected there is an increased parental options for –

Further testing in the form of Chorionic villus sampling (CVS) and Amniocentesis

Referral

Counseling re planned birth or termination

Altered obstetric management

Begin planning for a child with special needs