Results
Normal Hearing: Air conduction should be greater than bone conduction and so the patient should be able to hear the tuning fork next to the pinna after they can no longer hear it when held against the mastoid.
Abnormal Hearing:
- If they are not able to hear the tuning fork after mastoid test, it means that their bone conduction is greater than their air conduction. This indicates there is something inhibiting the passage of sound waves from the ear canal, through the middle ear apparatus and into the cochlea (i.e., there is a conductive hearing loss).
- In sensorineural hearing loss the ability to sense the tuning fork by both bone and air conduction is equally diminished. Sensorineurally hearing loss patients usually can hear better on the mastoid process than air process, but indicate the sound has stopped much earlier than conductive loss patients.
Read more about this topic: Rinne Test
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