Key Points Clinical Context: A normal 12-lead ECG in acute settings does not exclude life-threatening pathologies (e.g., occlusion myocardial infarction [OMI], pulmonary embolism [PE], cardiac tamponade, tension pneumothorax, aortic dissection)….
Key Points Initiation at the SA Node: The sinoatrial (SA) node initiates the heart’s electrical impulses, setting the heart’s rhythm. This impulse activates the atria, starting the cardiac cycle. Atrial…
A 64-year-old male with PMHx of hypertension and hyperlipidemia presents to the ED with chest pain associated with vomiting and shortness of breath. The patient looks sick. The following ECG is…