A patient's ECG shows intermittently non-conducted P waves with a fixed PR interval. What type of AV block does this describe, and what…

…The patient's left ventricular size and systolic function are normal. Which of the following pathophysiological mechanisms is most likely responsible for the development of…

…of heart disease. He appears disoriented and his vitals are unstable. An ECG is performed urgently. The patient's ECG is presented below. Which alternatives…

…and lung auscultation reveals bilateral crackles. A systolic murmur is also noted. An ECG shows ST-segment elevation in the anterior leads. The patient is…

…and positive in lead V1. Based on these surface ECG findings, which of the following is the most likely anatomic origin of this patient's…

…test, fails to reveal an etiology for his syncope. Which of the following is the most appropriate next step in the management of this patient…

…and his troponin level is elevated. An ECG shows no ST-segment elevation. Given the clinical context, which of the following statements regarding this patient…

…fraction (HFpEF) from noncardiac causes. Her score is calculated to be 4. What is the most appropriate next step in evaluating this patient's diagnosis?

…62-year-old male with ischemic cardiomyopathy (ICM) and a history of ventricular tachycardia (VT) s/p ICD implantation presents for evaluation of recurrent VT…

…The patient experiences palpitations with sudden onset and occassionally the sensation that the heart skips a beat. Clinical examination reveals nothing suspicious and the patient…

This 54-year-old patient with Covid-19 (Sars-Cov-2) has a slightly irregular rhythm. What is the rhythm and should you be concerned…

A 64 year old male patient with hypertension. ECG is recorded during his annual health screening. He is asymptomatic during the recording. Heart rate 67…