A new audiometric symbol for minimum response levels.
By Hlologelo Ramatsoma, and Dirk Koekemoer, MBChB
A common observation in audiometry is the minimum response levels of an audiometer due to various non-patient conditions. Audiologists and other hearing healthcare professionals must be cognizant of the difference between hearing thresholds and minimum response levels of a patient. In addition to this, an appropriate denotation of the minimum response levels on the audiogram is necessary to indicate that the ‘response’ obtained is not the patients’ hearing threshold.
ASHA has suggested audiometric symbols for the graphical representation of ‘responses’ obtained during pure tone audiometry, such include the marking of patients’ hearing thresholds. These suggested audiometric symbols are universally accepted and allow for uniformity when communicating audiometric results.
The creating and use of a new audiometric symbol for minimum response levels is necessary. As a result, a conversation has been started. The full article can be viewed on the Hearing Journal.
Symbols used in audiology to annotate on an audiogram thresholds, no-responses and minimum-plateaus (minimum testable hearing level)
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