The rhythm is irregular, but the long intervals are the same (↔) and the short intervals (┌┐) are the same. One premature QRS complex (↑) is observed. Therefore, the rhythm is regularly irregular. The ...

The correct diagnosis is sinus rhythm, nonconducted premature atrial complexes (PACs), and junctional escape complex (Figure 2). The rhythm is irregular, but the long intervals are all the same (↔) ...

This ECG shows a normal QRS complex with runs of a narrow complex tachycardia. There appear to be P waves present before the QRS complexes, however not of normal sinus morphology suggesting an ectopic ...

This ECG shows a normal QRS complex with runs of a narrow complex tachycardia. There appear to be P waves present before the QRS complexes, however not of normal sinus morphology suggesting an ectopic ...