The nuchal scan screens for Down’s Syndrome, Edwards’ Syndrome, and Patau’s Syndrome. This assessment considers the mother’s age, fetal heart rate, levels of two hormones in the mother’s blood (free ß-hCG and PAPP-A), and scan findings, including nuchal translucency thickness (fluid behind the baby’s neck), nasal bone, and any fetal abnormalities. Parents will receive comprehensive counselling about the significance of these risks and the options for further investigations, including invasive testing or NIPT.