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A Clinician's Guide to OAE Measurement and Analysis

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1.  Typical stimulus intensity levels for DPOAEs are: 80 dB SPL L1 = 65 dB SPL; L2 = 55 dB SPL L2> L f2/f1 = 1.22

2.  Which of the following steps typically precedes OAE measurement? Speech audiometry Estimation of IQ Calculation of the OAE to noise floor difference Otoscopic inspection of the external ear canal

3.  Which of the following are sources of noise in OAE measurement? Patient movement Ambient sound in the test environment Patient vocalization All of the above are sources of noise in OAE measurement

4.  Frequency specificity in OAE measurement is enhanced with: Use of a higher stimulus intensity level Recording with 3 stimuli within a single octave band Focusing on stimuli within a low frequency region Increasing the number of test frequencies per octave

5.  Verification of the reliability of OAEs is best accomplished with: Repeating OAE recordings for the same ear and stimulus conditions Comparing OAE test results with an audiogram Asking patients to listen to the stimuli during the test Increasing stimulus intensity level to maximum

6.  Which of the following is a criterion for the presence of OAE? Amplitude is at least -20 dB SPL Noise floor exceeds OAE amplitude by at least 6 dB OAE amplitude exceeds noise floor by at least 6 dB OAE amplitude is equivalent to noise floor

7.  Which of the following is a criterion for normal OAEs? Amplitude is at least -10 dB SPL Noise floor exceeds OAE amplitude by at least 6 dB OAE amplitude exceeds noise floor by at least 6 dB OAE amplitude is within the 5% to 95% region for normal subjects

8.  The three possible outcomes for OAEs are: normal, present but abnormal, absent normal, minimal, abnormal normal, abnormal, undetermined normal, mild, severe

9.  Which of the following should be considered when OAEs are absent? Middle ear dysfunction Debris blocking one or more ports in the probe Cochlear (outer hair cell) dysfunction All of the above should be considered

10.  Entirely normal OAEs generally rule out: Serious middle ear dysfunction Auditory processing disorder ANSD Traumatic brain injury (TBI)