<prompt> Which of the following arrhythmias is most likely to be heritable?Sho Q-T syndromeLong Q-T syndromeVentricular ectopicWPW Syndrome  <response>: Long Q-T syndrome. The genetic basis of heritable arrhythmias, most notably the long Q-T syndromes, has been linked to mutations of genes coding for subunits of cardiac potassium and sodium channeis. 