The rhythm is irregular, but there is a pattern. All of the long RR intervals are the same (1.16 sec), the intermediate RR intervals are the same (0.64 sec), and the short RR intervals are the same (0 ...
The diagnosis is sinus rhythm with interpolated premature ventricular complexes, in a trigeminal pattern, with retrograde concealed conduction. The rhythm is irregular, but there is a repeating ...