Case 10 Immittance

  • What are the Liden/Jerger tympanogram types?

The right ear resonant frequency is 900 Hz per the GSI results based on phase calculation.  The 900 Hz B tympanogram was run as well. (See below.)

  • Does the pattern of this tympanogram support or refute 900 Hz as being the right ear resonant frequency.
  • Is 900 Hz a normal or abnormal resonant frequency?

  • Is the left ear resonant frequency normal or abnormal?
  • If either right or left ear (or both) is/are abnormal, what does that say about the mass/stiffness of the middle ear system and what pathology do you think is present?

Acoustic Reflex Data

Thresholds

  • Is the reflex pattern expected or unexpected?
500 1000 2000 4000
Right Ipsi 100 100 100
Right Contra Absent Absent Absent
Left Ipsi Absent Absent Absent
Left Contra Absent Absent Absent