Normal Sinus Rhythm

Results:
ECG STAT August 1, 2025
Normal STAT ECG

Key Points Clinical Context: A single normal 12-lead ECG in the emergent setting does not exclude life-threatening conditions such as occlusion MI, PE, tamponade, tension pneumothorax, or aortic dissection. Serial…

ECG STAT July 12, 2025
Normal Sinus Rhythm

Key Points Definition: Normal sinus rhythm (NSR) refers to the heart’s rhythm when impulses originate from the sinoatrial (SA) node, the heart’s primary pacemaker. This rhythm suggests that electrical impulses…

ECG STAT July 11, 2025
Normal Cardiac Conduction

Key Points SA Node: Initiates electrical impulses; primary pacemaker (60–100 bpm). AV Node: Slows conduction to permit ventricular filling. Bundle of His: Transmits impulses from the AV node to ventricles;…

Weekly Workout January 5, 2015
ECG Basics & Fundamentals: A stepwise approach to ECG interpretation in patients with chest pain and clinical concern for an acute coronary syndrome (ACS) with pearls and pitfalls in obtaining chest pain histories

HPI: 61 year old male with significant cardiac risk factors presents with chest pain that that radiates down both arms. The pain is exertional and improves with rest. His pain…

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