Profile: GeneDx specializes in genetic testing for rare hereditary disorders. Our AutismDx testing is offered as tiered genetic testing approach to identify the most common genetic causes of Autism/ASD in individuals in whom a diagnosis of fragile X has already been excluded. Our ExonarrayDx is a custom-developed test to detect deletions or duplications of one or more exons of a gene, which is available for more than 130 genes. We offer genetic testing services for hypertrophic cardiomyopathy, dilated cardiomyopathy and long QT syndrome. We also offer clinically relevant & comprehensive test panels. We also provide prenatal diagnosis for known familial mutations, in any gene, for families that have had previous testing at GeneDx or elsewhere.