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Rinne test
The Rinne test of hearing compares perception of sounds, as transmitted by air or by bone conduction through the mastoid.
In a normal ear, air conduction (AC) is better than bone conduction (BC)
- AC > BC, positive Rinne.
In conductive hearing loss, bone conduction is better than air
- BC > AC, negative Rinne.
In sensorineural hearing loss, bone conduction and air conduction are both equally depreciated, maintaining the relative difference of
- AC > BC, positive Rinne.
In sensorineural hearing loss patients there may be a false negative Rinne
- BC > AC,
if the normal ear is not masked, and bone conduction heard in the normal ear is reported as louder by the patient.
03-10-2013 05:06:04
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details