RT Book, Section A1 Zimmerman, Franklin H. SR Print(0) ID 1200099558 T1 A Brief History of Electrocardiography T2 ECG Core Curriculum YR 2023 FD 2023 PB McGraw Hill Education PP New York, NY SN 9780071785211 LK accesscardiology.mhmedical.com/content.aspx?aid=1200099558 RD 2024/03/28 AB No comprehensive cardiac examination would be complete without performing an electrocardiogram (ECG or EKG). More than 100 years old, the electrocardiograph machine remains the simplest, least expensive, and most valuable tool in cardiology. It’s easy to take this bedside instrument for granted. So, before we teach you how to use this vital medical tool, let’s take a trip back through history.