ECG: Ventricular Ectopic Beats

An ECG strip shows the presence of ventricular ectopic beats, which are heartbeats that occur in addition to a normal heartbeat. Ventricular ectopic beats are seen as large, wide spikes among a pattern of thinner, normal QRS spikes. A normal ECG strip is shown at the bottom for comparison.

(From D Dubin, Rapid Interpretation of EKGs, 1996, Cover Inc., p. 95, 135; with permission.)