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Indicative vs Reciprocal ECG Interpretation


Views of the heart

Views seen on a 12-Lead ECG that look directly at a surface of the heart are referred to as “indicative leads” i.e. the views provided on a standard (left side of the chest) ECG like II, III, aVF – inferior etc.

If additional views are required to view the right ventricle or posterior of the heart directly, the chest leads would actually have to be physically moved to either the right side or posterior wall of the chest.

This is not always practical or prudent in the emergency setting…so, many providers initially rely upon indirect (reciprocal) views.

Continued

Views of the heart that or indirect are often referred to as “mirror-image” or “reverse” or “reciprocal” views.

In this instance morphologic changes that we would typically expect to see would be the reverse or opposite change. Meaning, what we would expect to see elevated would be depressed and changes reflected in depression would be elevated.

What is up would be down and down would be up!




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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