Send us a text Dr. Katherine P Callahan, neonatologist and bioethicist at Children's Hospital of Philadelphia, discusses the complexity of genetic testing in neonatal care. While the NICU serves as a launch point for genetic technologies due to high prevalence of genetic disease, genetic information is often ambiguous or uncertain rather than straightforwardly diagnostic. Variants of uncertain significance represent just one challenge—even clearly pathogenic findings may have unclear implicat...