Diagnostic Approach
BPPV is normally diagnosed with the Dix-Hallpike test . Tests of vestibular system (balance) function include electronystagmography (ENG), rotation tests, caloric reflex test, and computerized dynamic posturography (CDP).
Tests of auditory system (hearing) function include pure-tone audiometry, speech audiometry, acoustic-reflex, electrocochleography (ECoG), otoacoustic emissions (OAE), and auditory brainstem response test (ABR; also known as BER, BSER, or BAER).
Other diagnostic tests include magnetic resonance imaging (MRI) and computerized axial tomography (CAT or CT).
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