Testing For:
Ischemia or Circulation deficiency of the vertebral artery at the transverse foramen
Procedure:
- Patient seated
- Patient actively rotates the head fully to one side, then extends the neck
- Hold for 30 seconds
- Do the same on the other side
Positive sign:
Patient complains of dizziness, nystagmus, or both. (Further testing is contraindicated and patient must be referred to a medical doctor)