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If the negative electrode is placed on the left wrist and the positive electrode on the...

If the negative electrode is placed on the left wrist and the positive electrode on the right wrist what will happen

Science   Anatomy-And-Physiology   
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Answer #1

This can be best described by the Einthoven triangle concept where the relationship between the placement of leads and their effect on EKG is well described. To get the accurate result, left wrist must have the positive electrode and right wrist should bear the negative. The reversal happening here leads to wrong EKG outcome. This can be understood as follows

  • Inverted Lead 1 can be seen
  • Lead 3 results will be shown in lead 2 and expected lead 2 results will be shown as lead 3
  • Lead avL results will be shown in lead avR and expected lead avR results will be shown as lead avL
  • Right axis deviation is observed than the actual left axis one.
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