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Around 15 weeks

We give you the option of having a screening test called a “Quad Screen” if you have not yet had any genetic testing (CVS, amniocentesis or first trimester screening). The test will screen your baby for Down’s Syndrome, Trisomy 18 (another chromosome disorder), neural tube defects and some other less common complications of pregnancy. Like the first trimester screening, it is not a diagnostic test so it doesn’t tell us whether the baby has any of these conditions or not. For more information, see Quad Screen.