A 36-year-old woman with primary pulmonary hypertension is seen in her physician’s office after initiation of pulmonary vasodilator therapy. She is found to be tachycardic with an irregularly irregular heart rate.
What does her ECG show?
ECG Case 141
![Read more about the article Conduction Blocks at the AV Node (AV Blocks) [With Examples]](https://manualofmedicine.com/wp-content/uploads/2021/05/Excerpt-AV-Blocks-300x243.jpg)
