…pacemaker 5 years ago presents with progressive fatigue, abdominal fullness, and lower extremity edema. Echocardiography demonstrates severe tricuspid regurgitation, and the right ventricular pacemaker lead…

…year-old male with a history of ischemic cardiomyopathy and a dual-chamber pacemaker presents to the emergency department with palpitations and shortness of breath…

…or palpitations. A 12-lead electrocardiogram (ECG) reveals a PR interval of 250 ms and a QRS duration of 140 ms, which represents a sudden…

…beats per minute (b.p.m.) and a blood pressure of 110/70 mmHg. A 12-lead electrocardiogram (ECG) shows sinus tachycardia. Comprehensive laboratory workup…

Are there any signs of myocardial infarction? Pay attention to lead III in particular. The paper speed is 50 mm/s. Chest leads Limb leads

What is the recommended target time for recording and interpreting a 12-lead ECG at the point of first medical contact (FMC) for patients with…

…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…

…initial ECG shows ST-segment depression of 1.5 mm in leads I, aVL, V4, V5, and V6, and ST-segment elevation in lead aVR…

…and bilateral lower extremity edema. A 12-lead electrocardiogram (ECG) reveals sinus rhythm with a left bundle branch block. Transthoracic echocardiography demonstrates a left ventricular…

…diaphoretic, and experiencing severe respiratory distress. They immediately perform a 12-lead ECG. As they prepare for transport, the patient suddenly loses consciousness and goes…

…2) has a slightly irregular rhythm. What is the rhythm and should you be concerned about the q-waves in the inferior leads (II, aVF…