Frequency is plotted at the top of the graph, ranging from low frequencies(250 Hz) on the left to high frequencies (8000 Hz) on the right. The graph to the left represents a blank audiogram illustrates the degrees of hearing loss listed above. The list below outlines different hearing loss thresholds as they are determined in relation to an individual with a normal hearing threshold. For example, persons with mild hearing loss have thresholds that are 25 to 40 dB higher than the thresholds for those with normal hearing when tested using different at several frequencies. The degree of hearing loss is expressed by the difference between a person’s threshold and the average threshold for people with normal sensitivity. During a diagnostic hearing evaluation the threshold is measured at different frequencies (or Hertz, Hz) in each ear. The decibel (or dB) is the unit of intensity used to describe hearing sensitivity. Hearing thresholds are defined as the lowest level sound that can be heard 50% of the time. In order to determine a person’s degree of hearing loss, their hearing thresholds must be determined. The amount (or degree) of hearing loss a person experiences is based on hearing sensitivity. What information is on an audiogram and what does it mean for the person’s hearing ability?
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