Validation of a screening oto- admittance instrument.
A within-subject comparison between an American Electromedics 85R screening tympanometer and a Grason-Stadler 1723 clinical otoadmittance meter indicated equivalent results for middle-ear pressure. Tympanometer admittance readings needed to be rescaled to concur with the oto-admittance meter. Screening by acoustic reflex response using the single-intensity stimulus of the tympanometer was problematic and gave many misleading results.
D000158:Acoustic Impedance Tests; D002648:Child; D002675:Child, Preschool; D004432:Ear, Middle / Q000503:physiopathology; D006311:Hearing Disorders / Q000175:diagnosis*; D006320:Hearing Tests / Q000379:methods*; D006801:Humans