Einthoven TriangleLead IArightarm -left-armDepolarizationwaveLead IILead III+Left legReferring to the image above, determine what is projected onto Lead ll:PositiveNegative

Answered: Referring to the image above, determine…

Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

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Question

Einthoven Triangle
Lead IA
right
arm -
left
-arm
Depolarization
wave
Lead II
Lead III
+
Left leg
Referring to the image above, determine what is projected onto Lead ll:
Positive
Negative

Expert Solution

Step 1

Einthoven triangle is an imaginary equilateral triangle with an imaginary formation of three limb leads used in electrocardiography, formed by the two shoulders and the pubis. This inverted equilateral triangle has heart at its center. Each side of the triangle represent the bipolar limb lead. Bipolar lead means a lead composed of two electrodes of opposite polarity.

During depolarization and repolarization electric field is created by the heart. Each lead measures this electric field. This electric field changes continuously and cab be measured by the voltage difference between electrodes.

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