According to Casarett & Doull, antipsychotic medications as well as tricyclic antidepressants can induce serious cardiac effects including QT prolongation, ventricular arrhythmias and cardiac death; however, the most prominent adverse cardiovascular risk associated with these psychotropic medications is ______.
A. Heart failure
B. Orthostatic hypotension
C. Hyperlipidemia
D. Blunting of T waves