No, every guy does not have an AV line. The AV line is a specific type of heart rhythm that can be detected on an electrocardiogram (EKG). This rhythm is produced by the atrioventricular node (AVN), which is a small group of cells located in the lower right chamber of the heart. The AVN acts as a gatekeeper between the atria and ventricles, and helps to ensure that blood flows through the heart in a coordinated fashion. While all people have an AVN, not everyone has an AV line on their EKG. In order for the AV line to be present, there must be some kind of blockage or delay in the electrical signals passing through the AVN. This can happen for a variety of reasons, including congenital abnormalities, damage to the heart from disease or injury, and certain medications.