OTHER DIAGNOSTICS SUPPORT

AUDIOMETRY

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Audiometry is a test aiming at knowing the level/threshold of one's hearing and its disorder if any. This test is performed by using a pure tone audiometer inside a sound-proof room.

The principle is that various sound frequencies and intensities (dB) are transferred through headset or bone conduction to one's ear or mastoid, and then the threshold of sound intensity (dB) which is unable to be heard by the patient is recorded, through computer program or being plotted manually on graphic paper.

Benefits of audiometry:

  • to figure out the degree of hearing loss: mild, moderate or severe
  • to figure out the type of hearing loss: conductive, sensorineural or mixed

Test indications:

  1. Hearing degradation
  2. Ringing in the ear (tinnitus)
  3. Sensation of repletion in the ear
  4. Record of ear drainage
  5. Record of exposure to noise
  6. Record of trauma
  7. Record of ototoxic medication
  8. Record of hearing disorders within family
  9. Balance disorders

Degree of hearing loss parameter:

  • Mild hearing loss: 26-40 dB
  • Moderate hearing loss: 41-60 dB
  • Severe hearing loss: 61-90 dB
  • Profound hearing loss: > 90 dB

The reports of the result are normal hearing threshold, hearing threshold with conductive loss, hearing threshold with sensorineural loss, hearing threshold with mixed loss.

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