1) Test compares air and bone conduction hearing.

2) Strike a 512 Hz tuning fork softly.

3) Place the vibrating tuning fork on the base of the mastoid bone.

4) Ask client to tell you when the sound is no longer heard.

5) Note the time interval and immediatly move the tuning fork to the auditory meatus.

6) Ask the client to tell you when the sound is no lonnger heard..

7) Note the time interval and findings

A) Normal hearing clients will note air conduction twice as long as bone conduction

B) With conductive hearing loss, bone conduction sound is heard longer than or equally as long as air conduction

C) With sensorineural hearing loss, air conduction is heard longer than bone conduction in affected ear, but less than 2:1 ratio

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