EKG Drill Answer
This is Sinoatrial Block. Look for rhythm that is irregular when sa block occurs, with heart rate that is normal or slow. Notice that the P wave is normal. The PR interval is normal (0.12-0.20 sec). The QRS is typically normal (0.06-0.10 sec). Pause time is an integer multiple of the P-P interval
Try to identify specific type of atrial tachycardia - see other pages.