A junctional escape beat occurs when:
A) the AV junction becomes irritable and temporarily overrides the SA node.
B) there is a conduction block between the SA node and AV node.
C) there is an accessory pathway that causes reentry of the impulse at the AV node.
D) the rate of the SA node is slower than that of the AV node.

Question

Quizplus · Accepted Answer

A junctional escape beat occurs when the SA node rate is slower than the AV node, allowing the AV node to take over as the pacemaker.

A Junctional Escape Beat Occurs When