A 42-year-old woman presents with episodes of palpitations and syncope. ECG shows a prolonged QT interval. She recently started a high-dose antipsychotic. According to psychotropic prescribing guidance, what is the MOST appropriate action?AContinue the antipsychotic and ignore the ECGBStop the offending antipsychotic and consider switching to a lower-risk agentCAdd a beta blocker and continue the same antipsychotic doseDStart warfarinEImplant a pacemaker immediately in all such casesCheck my answer