Author Question: In Third Degree Heart Block with a rate of 40-60 bpm, with a QRS of less than 0.12 sec, you should ... (Read 473 times)

littleanan · **on:** Jul 2, 2018

In Third Degree Heart Block with a rate of 40-60 bpm, with a QRS of less than 0.12 sec, you should suspect that the pacemaker controlling the heart is located in the:

A) SA node.
B) atria.
C) AV junction.
D) ventricles.

Question 2

All of the rhythms characterized as heart blocks are caused by conduction disturbances at the:

A) SA node.
B) atrial pathways.
C) AV node.
D) Purkinje fibers.