Using a panel of ultrasound markers in a systematic fashion as a part of screening has been referred to as a "genetic sonogram". The presence of one of these markers may increase the possibility of Down syndrome.
Gilbert Syndrome is a common genetic liver disorder found in 3-12% of the population. It produces elevated levels of unconjugated bilirubin in the bloodstream.... http://www.natural-health-news.com/gilbert-syndrome-causes-symptoms-diagnoses-and-treatment/
Edwards Syndrome (Trisomy 18) Trisomies occur when there is a triplet of a specific chromosome instead of the normal number of 2. The most common trisomy is trisomy 21 or Down syndrome. In Edwards syndrome, or trisomy 18, there are 3 chromosome 18's. Patients with trisomy 18 can range from mildly to severely affected.