The correct diagnosis is sinus bradycardia and accelerated idioventricular rhythm (Figure 2). Figure 2. Courtesy of Philip J. Podrid, MD. The rhythm is slightly irregular at a rate of 50-54 beats/min.

There is regular rhythm at a rate of 42 beats/min. The first five QRS complexes are wide (0.14 sec), and no P waves are seen before or after these QRS complexes; however there appears to be a P wave ...