Based on current evidence, only a subset of genes have been confirmed to be strongly associated with SQTS; according to the Clinical Genome Resource (ClinGen), genes such as KCNH2, KCNQ1, KCNJ2, and SLC4A3 are considered to have sufficient evidence for their inclusion in genetic testing panels. The gene discussed is KCNJ2; the disease is Familial short QT syndrome.