A single,electrical impulse that originates outside the SA node in the atria is known as:
A) premature atrial complex.
B) premature sinus complex.
C) premature antigrade complex.
D) premature ventricular complex.

Question

Quizplus · Accepted Answer

A premature atrial complex is a single electrical impulse that originates from a location in the atria other than the SA node. This can result in an early contraction of the atria before the next scheduled beat from the SA node. The other choices are not correct as they do not involve the atria.

A Single,electrical Impulse That Originates Outside the SA Node in the Atria