Audiogram
- Graph of hearing threshold level as a function of frequency.
- Baseline Audiogram
- The audiogram obtained from an audiometric examination administered before employment or within the first 30 days of employment that is preceded by a period of at least 12 hr of quiet. The baseline audiogram is the audiogram against which subsequent audiograms will be compared for the calculation of significant threshold shift.
See also: Audiometer, Hearing.
