title: Variables in objective audiometry.
abstract: Objective audiometry has a definite application in evaluating problem patients. Three basic tests, electrodermal response audiometry (EDR), evoked cortical response audiometry (ERA), and impedance audiometry, are used to evaluate pediatric and adult patients. Each measurement technic, however, has limitations of which the physician should be aware. Impedance audiometry has the greatest potential as an objective measurement of auditory function.
mesh_terms: D001299:Audiometry / Q000379:methods; D001303:Auditory Cortex / Q000503:physiopathology; D001309:Auditory Threshold; D002648:Child; D002675:Child, Preschool; D005071:Evoked Potentials; D005712:Galvanic Skin Response; D006311:Hearing Disorders / Q000175:diagnosis; D006320:Hearing Tests; D006801:Humans; D012018:Reflex; D013199:Stapes / Q000503:physiopathology