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HEARING CONSERVATION |
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Hearing Conservation Program - Evaluation of audiograms |
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If subsequent employer provided audiometric
tests show that the STS identified
on a previous audiogram
is not persistent, employees exposed to an average level of 90 dBA may
discontinue wearing hearing protectors. A subsequent audiogram may be substituted for the original baseline audiogram if the professional supervising the program determines that the employee has experienced a persistent STS. The substituted audiogram becomes known as the revised baseline audiogram. This substitution will ensure that the same shift is not repeatedly identified. The professional may also decide to revise the baseline audiogram after an improvement in hearing has occurred. This will ensure that the baseline reflects actual thresholds as much as possible. When a baseline audiogram is revised, the employer must, of course, also retain the original audiogram. |
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