What is included in patient preparation for electronystagmography (ENG)?

Updated: Aug 06, 2019
  • Author: Angela G Shoup, PhD; Chief Editor: Arlen D Meyers, MD, MBA  more...
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If the patient has back or neck injuries, consider positional testing (head hanging) and the Dix-Hallpike maneuver to avoid further complications.

The clinician may want to screen for vertebrobasilar insufficiency prior to any positional or positioning test that may constrict the vertebrobasilar artery (ie, head-hanging or Dix-Hallpike maneuvers). This may include having the patient engage in mental tasking (eg, counting, reciting multiplication tables) while gradually tilting the head back and then holding. Change in cognitive status or reports of lightheadedness may be significant. This screening method is especially important for older patients.

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