title: Preventing collapse of external auditory meatus during audiometry.
abstract: Occlusion of the external auditory meatus resulting from earphone pressure can produce a pseudoconductive hearing loss. I describe a method for detecting ear canal collapse by otoscopy and I suggest a method of correcting the problem with a polyethylene tube prosthesis.
mesh_terms: D000368:Aged; D001299:Audiometry / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods*; D002648:Child; D004424:Ear Canal; D004426:Ear Deformities, Acquired / Q000517:prevention & control*; D006311:Hearing Disorders / Q000517:prevention & control; D006801:Humans