When assessing a patient with PVCs, the nurse knows that the ectopic beat is multifocal because it appears
a. in various shapes in the same lead.
b. with increasing frequency.
c. to widen the QRS width.
d. in a specific pattern in the same lead.
A
If the ventricular ectopic beats are of various shapes in the same lead, they are multifocal. Multifocal ventricular ectopics are more serious than unifocal ventricular ectopics because they indicate a greater area of irritable myocardial tissue and are more likely to deteriorate into ventricular tachycardia or fibrillation.
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