acoustic reflex threshold


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a·cous·tic re·flex thresh·old

(ART) (ă-kūs'tik rē'fleks thresh'ōld)
Lowest sound intensity required to elicit contraction of the stapedius muscle in the middle ear.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

acoustic reflex threshold

The decibel level that provokes reflex contraction of the stapedius muscle. Tests that measure the triggering of the acoustic stapedius reflex are used to determine the presence of sensorineural hearing loss.
See also: threshold
Medical Dictionary, © 2009 Farlex and Partners