A Visual Guide to ECG Interpretation

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A VISUAL GUIDE TO ECG INTERPRETATION

ECG 9.7B A 67-year-old male presents with shortness of breath.

Chronic Obstructive Pulmonary Disease

The voltage is low in both limb and precordial leads. The voltage is particularly low in lead I (lead I sign) and lead V6 because the vertically oriented heart in COPD results in a vertical axis perpendicular to these leads. This patient has been on home oxygen (2L) for the past five years. Copyright © 2021 Wolters Kluwer, Inc. Unauthorized reproduction of the content is prohibited.