U Wave — ECG/EKG Terminology

Definition: U Wave is an ECG-associated pattern often discussed in relation to metabolic, medication, or repolarization changes. In monitor-tech scope, report meaningful pattern shifts promptly and avoid treatment-level interpretation.

Key Facts

• The mechanism is questionable, but it is assumed:
• Delayed repolarization of the ventricular septum
• Delayed repolarization of some parts of the ventricles
• Repolarization of Purkinje fibers