• Apr 22, 2026 Ecg Boxes Rate egular rhythms. In irregular rhythms (like atrial fibrillation), the R-R intervals vary significantly. In such cases, calculating the heart rate based on a single R-R interval is unreliable. Instead, it's more accurate to: Measure sev By Clayton Pfeffer
• Jan 2, 2026 Atrial Depolarization Ecg terpretation of atrial depolarization on the ECG requires a systematic approach, combining knowledge of P wave morphology, rhythm analysis, and correlation with other ECG findings and clinical information By Dr. Jacqueline Kuhlman