…hypertension, type 2 diabetes mellitus, and persistent atrial fibrillation (AF) is scheduled to undergo coronary artery bypass grafting. His CHA2DS2-VASc score is 4. His…

…month. He reports strict adherence to his sodium-restricted diet and medical regimen. Six weeks ago, he was started on amiodarone for symptomatic atrial arrhythmias…

…electrocardiogram (ECG) reveals typical atrial flutter with a ventricular rate of 110 bpm. He has no prior history of atrial flutter or atrial fibrillation (AF)…

A 64-year-old woman with a history of recurrent symptomatic atrial fibrillation is started on quinidine (a sodium channel blocking agent) to maintain sinus…

…initial assessment concludes that the ECG is normal, but your colleague warns you that lead V1 may reveal an ongoing atrial flutter. Is that correct…

What is the correlation of isolated axis deviation or voltage criteria for atrial enlargement with cardiac pathology in athletes?

…in atrial fibrillation. His ECG shows a rapid, irregular wide-complex tachycardia. Which of the following medications is most likely to exacerbate his condition and…

…sinus tachycardia and abnormal Q-waves . Ventricular Rate 126 beats/min Atrial Rate 126 beats/min QRS Duration 90 ms QT Interval 334 ms QT…

…with acute chest pain and shortness of breath. Her initial ECG shows ST-segment elevation in the anterior leads. Cardiac catheterization reveals normal coronary arteries…

…experiences palpitations with sudden onset and occassionally the sensation that the heart skips a beat. Clinical examination reveals nothing suspicious and the patient has not…

A 55-year-old female, with a history of rheumatoid arthritis and on chronic steroid therapy, experiences sudden chest pain while swimming. She initially attributes…