Genetic testing is informative and useful for the clinical management of various inherited cardiovascular diseases such as cardiomyopathies, arrhythmic disorders, thoracic aortic aneurysms and dissections, and familial hypercholesterolemia Genetic testing can be used to find out whether you have a specific altered gene or a genetic fault which can lead to an inherited heart condition (IHC). A genetic test often involves a blood test.