ECG Question #2
Use the ECG strip above to answer the following questions:
Atrial depolarization is represented by which area of the strip?
- P wave
- U wave
- ST segment
- QRS complex
The P represents the electrical impulse starting in the sinoatrial node and spreading through the atria and represents atrial depolarization. The U wave represents repolarization of the Purkinje fibers. The ST segment represents early ventricular repolarization. The QRS complex represents ventricular depolarization.