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Alpha results Possible meaning • Within Normal Limits Recommendations • Continue periodic screening • Normal Cochlear Function Hearing levels most likely better than 35 dBHL for frequencies screened (+) Shows good DP levels (green) (+) Shows high noise levels (red) • Within Normal Limits but environment or subject was noisy • Try to find a quieter setting for future tests • Normal Cochlear Function • Continue periodic screening • Hearing levels most likely better than 35 dBHL for frequencies screened (+) Shows good DP levels (green) (+) Shows high noise levels (red) • Noisy test setting or test subject • Inconclusive results • Retest needed to rule out possible hearing problem (+) Shows high noise levels (red) • Retest in a quieter environment Possible meaning Recommendations • Hearing likely better than 35 dBHL at the 2 lower frequencies • Verify ear canal is free of cerumen, if occluded, remove cerumen and retest • Hearing likely worse than 35 dBHL at the 4 higher frequencies • Retest to confirm results • Consistent with high frequency sensory hearing loss (presbycusis, noise induced hearing loss, etc) • Complete audiometric evaluation • Discuss signs/symptoms of hearing loss • Provide communication strategies, if needed (+) noise levels (black) are low assures the operator the results were not influenced by noise • Hearing levels likely worse than 35 dBHL • Verify ear canal is free of cerumen, if occluded, remove cerumen and retest • Unknown if result is due to middle ear dysfunction or cochlear dysfunction • Retest to confirm results • Confirm middle ear status with tympanometry • Audiometric Evaluation • Discuss signs/symptoms of hearing loss • Determine if the patient experiences difficulties • Provide communication strategies, if needed (+) low noise (black) assures the operator the results were not influenced by noise • Shows lower frequencies absent OAE • Possible middle ear problem • Possible low frequency hearing loss • Verify ear canal is free of cerumen, if occluded remove cerumen and retest • Verify test environment does not have low frequency background noise (e.g. HVAC, humming of lights) • Tympanometery to rule out middle ear disorder • Discuss signs/symptoms of hearing loss • Determine if the patient experiences difficulties (+) low noise (black) assures the operator the results were not influenced by noise GN Otometrics, North America. 1-800-289-2150. [email protected] GN Otometrics, Europe. +45 45 75 55 55. [email protected] www.otometrics.com • Provide communication strategies, if needed Specifications are subject to change without notice. Copyright © GN Otometrics. 2015/12. 7-26-3091-US/01. Part no. 7-26-30901-US. Alpha results