The main hearing test used to determine a person's hearing threshold levels is called pure tone audiometry, or PTA. Bone and air conduction audiometry are also used in PTA. It makes it simple to identify the kind, degree, and configuration of a hearing loss. As PTA relies on patient reaction to pure tone stimuli, it is performed on adults and children who are old enough to participate with the testing method. PTA only assesses hearing thresholds behaviorally, or thresholds. Other types of hearing tests, such as click auditory brainstem response, benefit from PTA. PTA employs frequency-specific pure tones to provide ear-specific thresholds and place-specific responses to detect hearing loss.
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