![[fig77.bmp]](fig77.jpg)
Fig. 7.7 A supraventricular premature beat (APC).
The fourth P wave (arrow) has a different conformation from the preceding P waves and occurs prematurely. (Subsequent P waves and R~R intervals vary slightly.)
Fig. 7.7 A supraventricular premature beat (APC).
The fourth P wave (arrow) has a different conformation from the preceding P waves and occurs prematurely. (Subsequent P waves and R~R intervals vary slightly.)