pregnancy ultrasound is testing for diseases or conditions in a fetus or embryo before it is born. The aim is to detect birth defects such as neural tube
defects, Down syndrome, chromosome abnormalities, genetic diseases and other conditions, such as spina bifida, cleft palate, Tay Sachs disease, sickle
cell anemia, thalassemia, cystic fibrosis, Muscular dystrophy, and fragile X syndrome. Screening can also be used for prenatal sex discernment.