Associate Safety Professional Practice Exam

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What is the temporary threshold shift (TTS) related to?

  1. Long-term hearing loss

  2. Short-term changes in hearing ability

  3. Permanent damage due to noise

  4. Disturbances in balance

The correct answer is: Short-term changes in hearing ability

The concept of temporary threshold shift (TTS) refers to a short-term change in hearing ability that occurs when an individual is exposed to elevated levels of noise for a period of time. During this exposure, the sensitivity of the auditory system can decrease, leading to a temporary reduction in hearing acuity. After the noise exposure ceases, hearing ability typically returns to baseline levels. TTS is an important topic in noise-related health concerns, as it indicates a reversible condition that can occur even with normal hearing, emphasizing the need for hearing conservation measures in noisy environments. In contrast, long-term hearing loss, permanent damage due to noise, and disturbances in balance are associated with more chronic effects of noise exposure and do not accurately describe the transient nature of a temporary threshold shift.

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