ECG of normal sinus RYTHHMS -- On an ECG, a normal sinus rhythm is characterized by a heart rate between 60-100 bpm, a regular rhythm, a P wave preceding each QRS complex, and a normal PR interval. •Rhythm: The heart beats regularly, with consistent intervals between each beat. •Heart Rate: The heart rate falls within the normal range of 60 to 100 beats per minute (bpm). •P Wave: A P wave should be present before each QRS complex. The P wave should be upright in leads I and II, and inverted in l

Visual Guide to Supraventricular Arrhythmias and Sinus Rhythm ECG Patterns 📊 Featured Patterns: •Sinus Rhythm (SR): The physiological benchmark, characterized by atrial depolarization originating from the sinoatrial node with appropriate rate and conduction. •Atrial Fibrillation (AF): Chaotic, high-frequency reentry resulting in fibrillatory waves and an irregularly irregular ventricular response. •Atrial Flutter (AFL): Macro-reentrant tachycardia, most commonly cavotricuspid isthmus-dependent,

What's really happening in a PVC? 🤔 Premature Ventricular Contractions (PVCs) are early, abnormal electrical signals from the ventricles that disrupt the heart’s normal rhythm. While they’re actually extra beats, they often feel like a skipped beat—why? A PVC comes early before the heart has time to fill with blood, creating a weak pulse that’s barely felt. The next beat, after extra filling time, is stronger, leading to that noticeable ‘thump’ in the chest. Most PVCs are harmless, but frequent

Heart's Conduction in Normal Sinus Rhythm vs Atrial Fibrillation | Daily Cardiology