Noise-induced Hearing Disorders Detection and Evaluation
Hearing impairment can be detected in the early stages when a person who has no earlier problem finds it difficult to hear low noises or when certain should that cannot be distinguished meticulously. It is most likely that his friends or family members will notice the change.
Once he sees the physician, evaluation is easy. Audiometric tests can establish hearing loss and also identify the frequencies in which hearing impairment has taken place. The frequency distribution will also clearly distinguish hearing loss due to age and other reasons as different from loss due to exposure to high noise level. Treatment or restoring loss is not possible. Stopping further impairment is possible by not exporting to high noise level. Once hearing loss in a persons is established, it will be advisable to carry out audiometric tests on all the persons exposed in the same situation. Steps should be taken in such situation to control the noise by insulation, adsorption or any engineering control or buy the use of PPE.