Test Details: This panel helps in aneuploidy detection for chromosomes 18, X and Y. Autosomal monosomies are usually not compatible with life. Trisomy 18 is associated with Edward Syndrome. Sex chromosomal aberrations such as Klinefelter Syndrome (47,XXY) and Turner Syndrome (45,X) can also be detected using FISH Prenatal Diagnosis of cord blood cells is an effective and safe prenatal screening method for trisomy 18 and sex chromosomal aberrations in the average-risk or general population.