Pure-tone audiometry
Pure-tone Audiometry
Pure-tone audiometry (pronunciation: pyoor-tohn aw-dee-om-i-tree) is a hearing test used to determine the presence and degree of hearing loss. It is a key component in audiology and otolaryngology.
Etymology
The term "pure-tone" refers to the single frequency tone used in the test, while "audiometry" comes from the Latin words "audire" meaning to hear and "metria" meaning measurement.
Procedure
In a pure-tone audiometry test, the individual wears headphones and is exposed to a series of tones at different frequencies and volumes. The individual indicates when they can hear the tone, and the results are plotted on an audiogram. The test can be conducted in a soundproof booth to ensure accuracy.
Types
There are two main types of pure-tone audiometry: air conduction and bone conduction. Air conduction tests the individual's ability to hear sounds that are transmitted through the air, while bone conduction tests the individual's ability to hear sounds that are transmitted through the bones in the skull.
Related Terms
- Audiogram: A graph that shows the results of a pure-tone audiometry test.
- Audiologist: A healthcare professional who specializes in diagnosing and treating hearing loss and balance disorders.
- Otolaryngologist: A doctor who specializes in treating diseases of the ear, nose, and throat.
- Hearing Threshold: The softest sound that an individual can hear at least 50% of the time.
- Decibel: A unit of measurement used in audiometry to measure the intensity of sound.
See Also
External links
- Medical encyclopedia article on Pure-tone audiometry
- Wikipedia's article - Pure-tone audiometry
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