Chest pain or palpitations can signal hidden heart trouble. Know when an ECG test is needed, what results show, and when to seek urgent care.

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 ...

66 year old woman presents with chest tightness and nausea. She has a history of diabetes and is a smoker. The ECG is consistent with which ONE of the following diagnoses? Any history suggestive of ...

This ECG has a narrow QRS complex, a fast heart rate, regular rhythm and no identifiable P wave activity. It is likely that the P wave is buried in the QRS complex and the rhythm is junctional in ...

At Apple’s September keynote the company introduced the Series 4 Apple Watch. Among the features announced was a preview of the ability to generate an electrocardiogram or ECG within thirty seconds by ...