The T Wave & U Wave: Repolarization — ECG Academy Lesson

Learn to identify normal and abnormal T waves, understand what repolarization means clinically, and recognize the U wave and its significance.

Learning Objectives

• Describe the electrical event that produces the T wave
• List the normal T wave characteristics (direction, shape, amplitude)
• Identify clinically significant T wave changes: peaked, inverted, flattened
• Describe the U wave, when it appears, and its clinical significance
• Explain why T wave monitoring matters for detecting electrolyte abnormalities and ischemia