Unifocal PVCs:
A)arise from multiple irritable sites.
B)change conduction from one beat to the next.
C)look like each other.
D)look like the underlying rhythm.

Question

Quizplus · Accepted Answer

Unifocal PVCs originate from a single irritable site and therefore look very similar to each other, distinguishing them from multifocal PVCs that arise from multiple irritable sites and have varying morphologies. Unifocal PVCs do not affect conduction from beat to beat and should look different from the underlying rhythm.