_________ AV node block occurs when no atrial waves can pass through the AV node.
A)First-degree
B)Second-degree
C)Third-degree
D)Fourth-degree

Question

Quizplus · Accepted Answer

Third-degree AV block, also known as complete heart block, occurs when there is no conduction of electrical impulses through the AV node, resulting in a complete disassociation between the atria and ventricles. This means that the atria and ventricles beat independently of each other, leading to a slower and sometimes irregular ventricular rhythm. Patients with third-degree AV block typically require a pacemaker to regulate their heart rate. First-degree block is characterized by a delay in conduction through the AV node, while second-degree block is a partial conduction block where some but not all atrial waves can pass through the AV node. There is no such thing as a fourth-degree block.

_________ AV Node Block Occurs When No Atrial Waves Can