ABR

The responses to the condensation stimuli are noted below.

□   Mark the identifiable wave peaks and estimate the latencies. Summarize  and interpret the findings.

Testing was also conducted using a rarefaction polarity. Both ipsilateral and contralateral responses were obtained, but only the ipsilateral are shown below.  Testing was conducted at two rates.  The left ear shows three traces (not the summation of the traces.)

□   Again, summarize the findings.  Does wave V prolong with the increased repetition rate, and if so, is it by an expected amount or is it abnormal.

□   Critically evaluate and interpret these findings.