A standardized ascending audiometric test protocol used to determine hearing thresholds. The examiner (or automated system) presents tones at decreasing levels until the subject no longer responds, then increases in 5 dB steps until a threshold is confirmed at the lowest level at which the subject responds at least 50% of the time. The required protocol for OSHA-compliant audiometric testing.
SHOEBOX: SHOEBOX PureTest’s automated testing mode runs the Modified Hughson-Westlake protocol without examiner intervention.
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