The Impedance Test, also known as Impedance Audiometry or Tympanometry, is a diagnostic procedure used to assess the health and function of the middle ear and the mobility of the eardrum (tympanic membrane) and the tiny bones (ossicles) in the middle ear. This test provides valuable information about conditions such as middle ear infections, Eustachian tube dysfunction, and other problems that can affect hearing.
Here's how the Impedance Test is typically conducted:
The patient is seated comfortably. A small probe is gently placed into the ear canal. The probe contains a speaker that emits a pure tone sound and a microphone that measures the sound that reflects back from the ear.
The Impedance Test is particularly useful for identifying conditions such as
Middle ear infections or inflammation that can cause fluid buildup and affect hearing.