Advanced Hearing Tests
Auditory Brainstem Response (ABR) or Brainstem Auditory-Evoked Response (BAER)
Auditory Brainstem Response measures the level of hearing in the middle and inner ear, and is useful when more conventional hearing tests cannot be used. It evaluates brain wave activity in the auditory centers of the brain when a series of clicks is presented to each ear. ABR can be used as a screening tool for newborns who are at risk for hearing loss, patients who may already have hearing loss, patients with Ménière’s disease or similar disorders, and difficult-to- evaluate patients such those who are mentally retarded, autistic, or developmentally delayed.
Electronystagmography (ENG) is used to evaluate patients with dizziness, vertigo, orbalance dysfunction. ENG includes the use of electro-oculography to record eye movements. The vestibular system monitors the position and movements of the head in order to stabilize retinal images. ENG provides an objective assessment of the oculomotor and vestibular systems. The test requires about sixty (60) minutes to complete.