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Mutation of the GJB2 gene is a common form of non-syndromic hearing loss, which affects Connexin 26 protein formation. Changes in this protein formation can cause hearing loss in which part of the ear? 

Use Tympanogram #1 and Table 1 to answer the following:   True/False: Results in Tympanogram #1 are consistent with middle ear effusion.

Which of the following are considered the main skill set(s) for auditory processing? (Choose all that apply)

True/False: Results from frequency-specific ABR testing using tone bursts are closely correlated with pure tone behavioral hearing testing. 

Case Study #1   Below, you see the test findings for a comprehensive audiometric evaluation including TEOAEs and tympanometry. The patient was a compliant 5 year old and you felt confident that the findings are accurate. Tympanometric, TEOAE, and acoustic reflex testing results were identical for the left and right ears. TEOAEs resulted in a REFER (in both ears). Acoustic reflex thresholds were absent (no response) in both ears for all test frequencies. Use this information and Table 1. (tympanometric norms) to answer the following questions.    

Which genetic disorder leads to progressive hearing loss and end stage renal disease? 

Use Tympanogram #1 and Table 1 to answer the following:   What does Tympanogram 1 suggest in terms of middle ear function? (Choose all that apply)

Which type of test is used in newborn hearing screenings for children considered low risk for hearing loss? (Choose one)

Tympanogram #1: Assume the patient is a 7 year old male.     

Tympanogram #2: Assume patient is around 3 years old.