Key Points Normal 12-Lead ECG: A normal ECG obtained in emergent settings does not rule out life-threatening conditions. Hidden Pathologies: Some critical diagnoses, such as early occlusion myocardial infarction (MI),…
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…