Normal Audiogram
x - left, air conduction o - right, air conduction
With thanks to Wendy Pallant of Teaching Resources And INformation for allowing the use of this diagram on GPnotebook
Degrees of Hearing Loss (1):
Normal Hearing | -10-26 dB |
Mild Hearing Impairment | 27-40 dB |
Moderate Hearing Impairment | 41-55 dB |
Moderately Severe Impairment | 56-70 dB |
Severe Hearing Impairment | 71-90 dB |
Profound Hearing Impairment | >= 91 dB |
Reference:
- 1. Katz, J. Handbook of Clinical Audiology, Williams and Wilkins, 1985.
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