VERTEBRAL

ARTERY TEST

• ​​Testing for

Ischemia or Circulation deficiency of the vertebral artery at the transverse foramen.

• Test positioning

The client lies supine with their head extending past the end of the table, and the therapist sits with both hands supporting the client's head.

• Action

Slowly extend, rotate, and laterally flex the client's cervical spine to each side.

Then observe the client for dizziness, blurred vision, nystagmus, slurred speech, or loss of consciousness.

Each position should be held for approximately 30 seconds.

• Positive finding

Dizziness, blurred vision, nystagmus, slurred speech, or loss of consciousness are indicative of partial or complete occlusion of the vertebral artery.

• Special considerations & comments

The aforementioned signs and symptoms should be considered contraindications for such treatments as traction and joint mobilizations.

The Vertebral Artery Test is based on foundational principles developed by notable practitioners in the field of manual therapy and physical assessment.

Key contributors include Dr. James Cyriax, Dr. Geoffrey Maitland, and Dr. John C. L. Pritchard.

Their work in orthopaedic medicine and physiotherapy has influenced the development and standardization of this assessment.