Many drugs are associated with QT prolongation and certain patient factors can increase this effect, leading to a significant risk of arrhythmias. Drug Notes: Q1=QuestionAssessing the drug using CredibleMeds ®; Q2=QuestionAssessing the drug dose, route, and drug interactions; Q3=QuestionAssessing the This arrhythmia is seen when the QTc is excessively prolonged, either as an inherited disorder, the congenital long QT syndrome, or the acquired long QT syndrome caused by electrolyte disturbances