Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Familial hypertrophic cardiomyopathy ?
    ### Response:
    Is genetic testing available for familial hypertrophic cardiomyopathy? Yes. Familial hypertrophic cardiomyopathy (HCM) is caused by mutations in any of several known genes, and possibly other genes that have not yet been identified. Genetic testing for HCM is most informative as a "family test" rather than a test of one person.
    