Einthoven Triangle ECG Interpretation


Introduction

By use of three sensors, one each placed on the right arm, left arm and left leg, we are able to obtain six different views.

The first three views I will review are called Standard Leads I, II and III These views are referred to as "bipolar leads" due to two sensors utilized on the skin surface (one is positive and the other is negative – just like a battery) to complete the circuit.

The other three views are aVR, aVL and aVF. These will be discussed shortly.

One last comment, direct views of the heart will always be from the position of the positive pole i.e. Lead II and aVF positive pole is the left leg. These would be "inferior" views.

Overview

Einthoven's Triangle

einthoven triangle 1



Authors and Sources

Authors and Reviewers


Sources

  • Electrocardiography for Healthcare Professionals, 6th Edition Kathryn Booth and Thomas O'Brien
    ISBN10: 1265013470, ISBN13: 9781265013479
    McGraw Hill, 2023
  • Rapid Interpretation of EKG's, Sixth Edition
    Dale Dublin
    Cover Publishing Company
  • EKG Reference Guide
    EKG.Academy
  • 12 Lead EKG for Nurses: Simple Steps to Interpret Rhythms, Arrhythmias, Blocks, Hypertrophy, Infarcts, & Cardiac Drugs
    Aaron Reed
    Create Space Independent Publishing
  • Heart Sounds and Murmurs: A Practical Guide with Audio CD-ROM 3rd Edition
    Elsevier-Health Sciences Division
    Barbara A. Erickson, PhD, RN, CCRN
  • The Virtual Cardiac Patient: A Multimedia Guide to Heart Sounds, Murmurs, EKG Jonathan Keroes, David Lieberman
    Publisher: Lippincott Williams & Wilkin)
    ISBN-10: 0781784425; ISBN-13: 978-0781784429
  • Project Semilla, UCLA Emergency Medicine, EKG Training Breena R. Taira, MD, MPH
  • ECG Reference Guide
    PracticalClinicalSkills.com






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