Rhythm Interpretation

Does response to adenosine rule out ventricular tachycardia?

A 54-year-old man with no PMHx presents to the ED with palpitations. He is noted to be tachycardic but is stable with a normal blood pressure. The following ECG is…

ECG Basics & Fundamentals: inspecting T waves closely, looking for buried P waves

A 65-year-old man presents to the ED with malaise, cough, and vomiting. The following ECG was obtained:

Sustained vs. nonsustained ventricular tachycardia

A 45-year-old woman presents with 1 week of frequent palpitations. She reports mild dyspnea and lightheadedness without any associated chest pain. She denies using caffeine, alcohol or illicit drugs. Family…

Literature Review: when are calcium channel blockers and beta blockers contraindicated in atrial fibillation

A 39-year-old man is being transported to the ED via EMS with palpitations, malaise, and chest pressure for the last 12 hours. EMS reports that the has severe tachycardia with a normal mental…

Differential Diagnoses: supraventricular tachycardia with ST segment elevation in aVR

A 57-year-old woman presents to the ED with palpitations and dyspnea. She has a prior history of having an elevated heart rate but has never been formally diagnosed with any specific tachydysrhythmia. The…

STAT ECG Diagnoses: how would this prehospital rhythm strip change your management?

A 10-year-old male is transported to your ED for recurrent seizures. The following prehospital rhythm strip was obtained:

Narrow Complex Tachycardia: inappropriate anticoagulation because of misdiagnosis

A 96-year-old man presents to the ED with a dry skin rash. On review of symptoms the patient reports 1-2 episodes of fleeting chest pain that is sharp. The following…

Wide Complex Tachycardias: what is the difference between polymorphic ventricular tachycardia and torsades des pointes

A 13-month-old female is transferred to you for intermittent torsades/dysrhythmias from a community ED. She has been slightly lethargic and has a cardiac history of VSD, ASD, and a PDA…

Bradyarrhythmias: bizarre slow rhythm that is not responding to ACLS

STAT ECG Diagnoses: dysrhythmias in patients with STEMI

Bradyarrhythmias: regular vs. irregular P-P intervals

Rhythm Interpretation: a three-step approach to diagnosing AV blocks

HPI:  A 54-year-old woman with PMHx of cardiomyopathy is referred to the ED by her cardiologist who is concerned about an “arrhythmia”. Case ECG   Before watching this week’s video,…