Case 1 Immittance

  • What is the left ear tympanogram type? What is your interpretation of the ear canal volume?

The 1000 Hz Y / B and G tympanograms are posted below. Recall that the ear canal volume readings are not “correct” when the probe tone is other than 226 Hz.

  • What information is added to the diagnostic picture from these traces? What is your assessment of the status of the left outer ear, tympanic membrane and middle ear?