A 68-year-old man without previous comorbidities presented to the emergency department with complaints of palpitations and giddiness. On examination, his pulse rate was 92 beats per minute, and his ...

We were unable to process your request. Please try again later. If you continue to have this issue please contact customerservice@slackinc.com. A 68-year-old male with morbid obesity and no past ...

Enlarge Source: Learn the Heart Which of the following does the above ECG represent? The ECG shows sinus tachycardia at about 110 beats per minute with a prolonged PR of 0.22 seconds: first-degree ...

Q: I recently had an electrocardiogram as part of a routine physical exam. The report said I had a bundle branch block. What does that mean? Will I need a pacemaker? A: Bundle branch blocks are ...

Have you ever heard the term 'sinus arrhythmia' and wondered what it means? You might have come across it during a routine check-up or on an Electrocardiogram (ECG) and felt concerned. The word ...