In Complete Heart Block, if a junctional focus is controlling the ventricles, the rate will be beats per minute.If the rate is 20- 40 beats per minute and the QRS measures over 0.12 sec., you should suspect that the pacemaker controlling the heart is located in the .
A)60- 100; ventricles
B)20- 40; atria
C)40- 60; AV junction
D)below 20; SA node

Question

Quizplus · Accepted Answer

CIn Complete Heart Block, if a junctional focus is controlling the ventricles, the rate will typically be 40-60 beats per minute, indicating the correct answer is C. However, if the rate is 20-40 beats per minute and the QRS measures over 0.12 sec, it suggests that the pacemaker controlling the heart is located in the ventricles, making A also correct.

In Complete Heart Block, If a Junctional Focus Is Controlling