Which of the following heart block dysrhythmias is identified by regular P-P and R-R intervals that are firing at two distinctly different rates, causing variable PR intervals?
A)First-degree heart block
B)Second-degree AV block, Mobitz type I
C)First-degree AV block
D)Third-degree AV block

Question

Quizplus · Accepted Answer

The dysrhythmia described is characteristic of Third-degree AV block, also known as complete heart block. In this type of heart block, there is no conduction between the atria and the ventricles, leading to two separate but regular rhythms. The P-P and R-R intervals will have fixed rates, but they will be firing at different rates. This causes variable PR intervals, as the atria and ventricles are not in sync.

Which of the Following Heart Block Dysrhythmias Is Identified by Regular