Wandering Atrial Pacemaker

Multiple Choice

Wandering atrial pacemaker:

A) can produce a life-threatening reduction in cardiac output.
B) is an ominous finding in children, older adults, and well-conditioned athletes.
C) represents the presence of excessive sympathetic nervous system stimulation.
D) is generally caused by the inhibitory vagal effect of respiration on the SA node and AV junction.