QT Prolongation & Drug-Induced Changes — ECG Academy Lesson

Why QT monitoring matters, which medication classes prolong the QT, and how prolonged QT leads to Torsades de Pointes.

Learning Objectives

• Explain why prolonged QT creates risk for dangerous ventricular arrhythmias
• Identify major medication classes that prolong the QT interval
• Describe how drug and electrolyte risks compound each other
• Recognize Torsades de Pointes as the primary danger of prolonged QT
• Demonstrate station-scoped QTc trending and escalation language