AV dissociation is associated with the ________ degree block.
A) fourth-
B) first-
C) second-
D) third-

Question

Quizplus · Accepted Answer

AV dissociation occurs in third-degree (complete) heart block, where the atria and ventricles beat independently from each other. In first-degree block, the electrical conduction between the atria and ventricles is delayed but not blocked. In second-degree block, some but not all of the electrical impulses from the atria reach the ventricles. In fourth-degree block (also known as third-degree AV block with a bundle branch block), there are multiple conduction abnormalities in the heart's electrical system, leading to complete AV dissociation.

AV Dissociation Is Associated with the ________ Degree Block