What is the upper limit of the severe hearing loss range in decibels?

The upper limit of the severe hearing loss range is defined at 90 decibels (dB). Hearing loss is categorized into several levels, including mild, moderate, severe, and profound. According to the standard classifications used in audiology, severe hearing loss is typically identified as a hearing threshold of around 70 to 90 dB.

Once a person's hearing threshold reaches 90 dB, they are generally considered to have severe hearing loss, as they would struggle to hear sounds that are lower than this level. This categorization is essential for understanding the degree of hearing impairment, which can inform treatment options and the type of hearing assistance an individual may require.

In summary, the classification of severe hearing loss includes individuals who have a hearing threshold that reaches up to 90 dB, making it the correct upper limit within that range.