Diagnostic Audiology - 22/08/11
Doi : 10.1016/B978-0-323-05283-2.00134-8
Key Points |
• | The audiologic test battery encompasses a range of behavioral/psychophysical and objective/physiologic tests that provide key insights into otologic disorders. |
• | Some components of the auditory test battery are nonspecific (e.g., tonal and speech audiometry); others (e.g., electrocochleography) are specific for the diagnosis of specific auditory system pathologies. |
• | It is necessary to apply certain basic tests, such as pure-tone audiometry, speech audiometry, immittance testing, and otoacoustic emissions, to characterize the basic properties of the auditory system for every new patient with auditory complaints. |
• | More specific and physiologic tests need to be tailored based on patient complaints, the results of the basic test battery, and clinical suspicion. |
• | If administered and interpreted correctly, physiologic tests, such as electrocochleography, auditory brainstem response testing, and otoacoustic emission testing, offer substantial specificity and sensitivity. Critics citing low specificity and sensitivity of audiologic tests (i.e., auditory brainstem response in the diagnosis of small acoustic neuroma) do not take into consideration poor technical quality. |
Plan
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