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Current Topics in Noise Induced Hearing Loss: Selections from the 12th Annual AudiologyOnline Series

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1.  How many people exposed to 85 dBA for an 8-hour time weighted average will eventually develop material hearing impairment? 10% 8% 25% 50%

2.  The NIOSH (1998) definition of a material hearing impairment is: 25% hearing loss Any measurable pure-tone threshold shift at any frequency 250-8000 Hz. 25 dB or greater hearing loss weighted average at 1000 Hz - 4000 Hz. Pure-tone average of 30 dB or greater.

3.  The Tinnitus Functional Index includes how many domains that describe tinnitus severity and negative impact? 50 25 100 8

4.  What increase or reduction in TFI score can be considered a significant change in tinnitus? 13 point shift 15 point shift 25 point shift 20 point shift

5.  Chronic exposure to loud music: Does not result in damage to the ear and has no functional consequences. Can damage the ear but the pathology is usually minor and has no functional consequences. Can damage the ear and induce hearing disorders. Is not a concern because it is the listeners choice to participate in this activity.

6.  Mice that experience TTS had a selective loss of what type of cells immediately after the noise exposure? Outer hair cells Inner hair cells Auditory nerve fibers IHC synapses on auditory nerve fibers

7.  Mice that experience TTS early in their lifespan experienced a selective loss of what type of cells when they were allowed to age? Outer hair cells Inner hair cells Spiral ganglion cells Fibrocytes

8.  As mice age, they lose outer hair cells. This outer hair cell loss was associated with what permanent deficits? Lasting change in OAE threshold. Chronic tinnitus. Hearing in noise deficits. Lasting decrease in ABR amplitude.

9.  At minimum, what should be done during an on-site visit along with ear impressions: A full audiogram and DPOAEs. Get a picture with the band for Audiology Facebook groups. A hearing screening. Detailed education on hearing conservation principles.

10.  The most important part of a hearing conservation program for musicians is: Ear impressions Education Selection of devices Hearing testing

11.  Music Induced Hearing Disorders include: Tinnitus, hyperacusis, misophonia, and dysacusis Tinnitus, diplacusis, hearing loss, and hyperockusis Dysacusis, cymbal fever, hyperacusis, and earworms Diplacusis, hyperacusis, tinnitus, and distortion

12.  ____% of audiologists felt confident working with musicians 15% 25% 87.1% 50%

13.  Which of the following hearing aid program adjustments can help live music sound more natural, than one might experience with default first-fit settings based on prescriptive gain based on the audiogram? Increase MPO relative to the gain that would be prescribed based on the audiogram. Increase the compression ratio (CR) relative to the CR prescribed based on the audiogram. Increase soft sound gain for low-frequencies, relative to prescriptive gain settings based on the audiogram. Increase soft sound gain for high-frequencies, relative to prescriptive gain settings based on the audiogram.

14.  Pitch and loudness matching of the patient's tinnitus assists the audiologist to: Feel better about his or her tinnitus Compare tinnitus suffering of the individual to a larger group Provide individualized sound therapy Determine the validity of the audiogram

15.  Minimum tinnitus masking level measures assist the audiologist to: Determine the validity of the audiogram. Compare tinnitus suffering of the individual to a larger group. Determine if the patient is malingering. Establish a starting level for masking in a hearing aid tinnitus program.