Rinne Test - Air Vs. Bone Conductive Hearing Loss | Air Bone Conductive Hearing Loss

Air Vs. Bone Conductive Hearing Loss

Air conduction uses the apparatus of the ear (pinna, eardrum and ossicles) to amplify and direct the sound whereas bone conduction bypasses some or all of these and allows the sound to be transmitted directly to the inner ear albeit at a reduced volume, or via the bones of the skull to the opposite ear.

Description	Relative	Positive/negative
In a normal ear, air conduction (AC) is better than bone conduction (BC)	AC > BC	this is called a positive Rinne
In conductive hearing loss, bone conduction is better than air	AC < BC	negative Rinne
In sensorineural hearing loss, bone conduction and air conduction are both equally depreciated, maintaining the relative difference of bone and air conductions	AC > BC	positive Rinne
In sensorineural hearing loss patients there may be a false negative Rinne	AC < BC	negative Rinne

Note that the words positive and negative are used in a somewhat confusing fashion here, other than their normal use in medical tests. Positive or negative means that a certain parameter that was evaluated was present or not. In this case, that parameter is if air conduction (AC) is better than bone conduction (BC). Thus, a "positive" result indicates the healthy state, in contrast to many other medical tests. Therefore, if presenting your findings to a physician, to avoid confusing yourself, it may be wise to avoid using the term 'positive' or 'negative', and simply state if the test was normal or abnormal e.g. 'Rinnes test was abnormal in the right ear, with bone conduction greater than air conduction'.

Famous quotes containing the words air, bone, hearing and/or loss:

“What is lawful is not binding only on some and not binding on others. Lawfulness extends everywhere, through the wide-ruling air and the boundless light of the sky.”
—Empedocles 484–424 B.C., Greek philosopher. The Presocratics, p. 142, ed. Philip Wheelwright, The Bobbs-Merrill Co., Inc. (1960)

“Sang a bone upon the shore;
“A child found all a child can lack,
Whether of pleasure or of rest,
Upon the abundance of my breast”:
A bone wave-whitened and dried in the wind.
”
—William Butler Yeats (1865–1939)

“Orpheus with his Lute made Trees,
And the Mountaine tops that freeze,
Bow themselves when he did sing.
To his Musicke, Plants and Flowers
Ever spring; as Sunne and Showres,
There had been a lasting Spring.
Every thing that heard him play,
Even the Billowes of the Sea,
Hung their heads, and then lay by.
In sweet Musicke is such Art,
Killing care, and griefe of heart,
Fall asleepe, or hearing dye.”
—William Shakespeare (1564–1616)