Genetics
Amniocentesis, usually after 15 weeks, gives a definitive chromosome or gene diagnosis. It carries a small procedure-related risk of miscarriage and is offered after abnormal screening or where a specific condition needs confirmation.
Also known as: amnio, diagnostic prenatal test
Related Canada guides
Sources
- Society of Obstetricians and Gynaecologists of Canada (SOGC) patient information
Last reviewed: September 9, 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.