DIZZINESS / VERTIGO
The term dizziness refers to many different types of abnormal sensations of balance, whereas vertigo specifically refers to an illusion of movement. Neither one is a diagnosis alone and a search for the potential cause is a must.
Any severe acute onset dizziness or vertigo accompanied by neurologic symptoms such as weakness, numbness, trouble speaking or swallowing would be suspicious for stroke (CVA) and require emergent evaluation in the ER.
INNER EAR TESTING
The VNG (videonystagmography) test is used to determine the location and possible cause of problems in the vestibular (balance) system. It is performed with a set of goggles equipped with cameras to measure eye movements relative to head and body position and external stimuli.
Often times, the exact reason for dizziness or vertigo can be pinpointed and quite often the audiologist is able to provide some type of treatment for the problem during the same session.