Introduction to ECG Part 1 of 5

Prehospital Academy Lesson 16.1 Cardiology is the cornerstone of advanced prehospital care, yet it is often the most misunderstood. To move beyond simple rhythm memorization, the paramedic must grasp the underlying electrophysiology—the "why" behind every deflection on the monitor. This companion guide explores the anatomical orientation of the heart, the hierarchy of its electrical conduction system, and the complex cellular action potentials that translate into the waveforms seen on an ECG. 🚑 For more FREE Open access EMS Education Materials visit https://prehospitalacademy.org/ Disclaimer: This content is provided for educational purposes only and is not a substitute for formal training, medical direction, or local protocols. Clinical practices vary by jurisdiction. Always follow your agency policies, medical director guidance, and applicable laws when providing patient care.