If you use assistive technology (such as a screen reader) and need a
version of this document in a more accessible format, please email firstname.lastname@example.org.
Please tell us what format you need. It will help us if you say what assistive technology you use.
CVS and amniocentesis are diagnostic tests that can tell for definite if a baby has a serious condition by checking their chromosomes.
This A5 leaflet is for pregnant women who are offered a CVS or amniocentesis test following fetal anomaly screening.