An older adult client is trialing the use of an infrared listening device (IRLD). How does this device have the potential to increase the client's ability to hear?
A) The device directs sounds into one ear rather than into both ears
B) The device increases the volume of foreground noises
C) The device enhances the function of the auditory nerve
D) The device converts light into an auditory stimulus
D
Feedback:
An IRLD converts sound into infrared light and sends it through a wall- or ceiling-mounted receiver to the person wearing the listening device. The light is converted back into an auditory stimulus. IRLDs do not direct sound into one ear, influence the function of the auditory nerve, or increase the volume of foreground noise.
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