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Otoscope examination
Ear anatomy
 
Overview   Risks   Results   

Tympanometry

Normal values:

The normal pressure inside the middle ear is 100 daPa (a very small amount). The tympanic membrane should appear smooth and symmetrical.

What abnormal results mean:

Tympanometry may reveal any of the following:

  • fluid in the middle ear
  • perforated ear drum
  • impacted ear wax
  • scarring of the tympanic membrane
  • lack of contact between the conduction bones of the middle ear
  • a tumor in the middle ear

Adam

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