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Test Findings
 
 

Baseline Wander

 
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Overview

This type of interference originates from the interface of the skin and the electrode, and makes interpretation of high amplitude waves (e.g. the T wave or ST segment) difficult. In certain circumstances, baseline wander may mimic life-threatening arrhythmias.
  • Look For

  • Low-frequency variation of the isoelectric line.
  • Baseline Wander
     
  • Causes of Baseline Wander

  • Patient movement - especially respiration
  • Inadequate contact between electrodes and body surface
  • Improper skin preparation
  • Patient sweating
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