The rhythm observed on the monitor during the exercise stress test is indicative of Second-degree AV heart block Mobitz type II.
Here's an explanation to help you understand this rhythm:
1. Second-degree AV heart block Mobitz type II is characterized by intermittent conduction block at the level of the atrioventricular (AV) node.
2. In Mobitz type II, some of the electrical signals from the atria fail to reach the ventricles, leading to dropped beats. This can result in a 2:1 or 3:1 pattern where every 2nd or 3rd atrial beat is conducted to the ventricles.
3. It is considered more serious than Mobitz type I because it can progress to complete heart block where none of the atrial impulses are conducted to the ventricles.
4. Symptoms can include dizziness, syncope (fainting), and an increased risk of developing complete heart block.
Therefore, based on the rhythm observed, it aligns with Second-degree AV heart block Mobitz type II.
