There is a regular rhythm, although the fourth and ninth QRS complexes (*) are slightly early — ie, a shorter RR interval. The QRS complexes are narrow and have a normal morphology and axis. The rate ...

This is an accelerated junctional rhythm and P wave activity can be seen at the end of the QRS complexes in lead I and lead III. The QT is quite prolonged. This ECG was from a patient with genetic ...

At a glance, the tracing appears to show sinus rhythm with first-degree AV block and junctional bigeminy. However, careful observation of the V1 lead shows regularly occurring P waves (↓ in Figure 2) ...

An EKG measures the heart’s electrical activity and can detect various issues, including heart attacks, rhythm abnormalities, and electrolyte imbalances. Seek immediate medical help if you experience ...

This 81 year old woman presents to her GP with blackouts lasting a few seconds. What does her ECG show? A Sinus rhythm with Mobitz I second degree (Wenckebach) AV block The ECG shows consistent p ...