- The training program includes a pre-learning phase that allows participants to familiarize themselves with foundational concepts before engaging in in-person interactions with the facilitator.
- Following the pre-learning phase, participants will have the opportunity to meet with the facilitator in a physical classroom setting. This direct interaction is crucial for addressing any questions or concerns that may have arisen during the self-study period.
- Additionally, the physical classroom component is designed to facilitate hands-on practical training. This aspect of the program allows participants to apply theoretical knowledge in real-world scenarios, enhancing their understanding and retention of the material. Working under the guidance of an experienced facilitator, learners can practice skills, collaborate with peers, and gain valuable insights that are difficult to achieve through online learning alone.
- Overall, this structured approach—combining pre-learning with direct facilitator contact and practical classroom experiences—ensures a comprehensive and effective learning journey that accommodates various learning styles and maximizes participant engagement.
The Diagnostic Audiogram Copy
The Diagnostic Audiogram
A diagnostic audiogram is performed when an individual has an abnormal screening audiogram result and/or a PLHS of 6.4% or 10% from baseline. It is done to determine the cause of the hearing loss or to confirm or rule out noise-induced hearing loss. Compensation for NIHL will only be contemplated after THE submission of a diagnostic audiogram. This type of audiogram is performed by an audiologist or ENT specialist and includes air conduction testing, bone conduction testing, speech discrimination and masking techniques as appropriate.
Requirements of the diagnostic audiogram:
Must be performed by an ENT specialist or AudiologistThe audiogram shall be preceded by a period of at least 24 hours with no exposure to noise greater than 85dB(A)
The use of hearing protection that meets the requirements of SANS 1451 is deemed NOT to satisfy this requirement
No avoidable otopathology should be present
A diagnostic audiogram consists of two audiograms conducted on the same day in two different settings (2 different rooms or locations)
The audiogram may not differ by more than 10dB across any of the frequencies, 0.5, 1, 2, 3, 4kHz
Where there is a difference of 10dB the test must be repeated a third time
If the 3rd test is still not compatible retest the employee in 6 months
The better of the two audiograms will be used to calculate the PLH for compensation purposes (Circular 171)
Record all interventions and tests on the audiogram
Store for 40 years
*Take note
Once the worker returns from a diagnostic audiogram, capture the results onto the audiometer or software programme to ensure the comparisons for future audiometry are made against the result of the diagnostic audiogram.
If a comparison is made between a pure-tone screening audiogram (as reflected in Figure 8.5A below) and compare it to Figure 8.5B it is easy to see the difference. Again, at this stage the interpretation is not important, what is of interest is the markings on figure 8.5, this is a diagnostic audiogram and has hatches (< / >) on it.
Figure 8.5: A. A screening audiogram4
B. A diagnostic audiogram4
Bilateral, noise-induced sensorineural hearing loss. There are no significant differences between air and bone conduction thresholds. The asymmetry at 3000Hz and 4000Hz (with the left ear worse than the right) reflects this worker’s occupation as a soldier in the infantry and being a right-handed shooter4.
WALKER, JJ MD: American Family Physician Journal. Audiometry Screening and Interpretation 2013 Jan 1;87(1):41-47 U.S https://www.aafp.org/afp/2013/0101/p41.html
