Aural Rehab Exam II

What is the main purpose of amplification in hearing devices?

To make speech and environmental sounds audible, optimize intelligibility and sound quality, and ensure loud inputs are not uncomfortable or distorted.

What is the responsibility of fitting hearing aids?

Fitting must be cost effective and appropriate to the individual's type and degree of hearing loss, with follow-up evaluations.

What types of hearing aids are there?

Types include Custom aids, In-The-Ear (ITE), In-The-Canal (ITC), Completely-In-Canal (CIC), and non-custom hearing aids.

What are the basic components of a hearing aid?

Microphone, amplifier, receiver, and battery.

What does the microphone in a hearing aid do?

It converts sound waves into electrical signals.

What is the function of the amplifier in a hearing aid?

It increases the strength of the electrical signal to make it louder.

How does the receiver in a hearing aid work?

It converts the amplified electrical signal back into an acoustical signal that can be channeled into the ear canal.

Why is the battery important in a hearing aid?

It provides the electrical energy needed to power the hearing aid.

Which features might be included in a hearing aid?

On/Off switch, telecoil, volume control.

What is the telecoil used for in hearing aids?

It enhances the use of hearing aids on the telephone by converting electromagnetic signals to acoustic energy.

What does the volume control do in a hearing aid?

It adjusts the loudness levels of the hearing aid.

What significant law requires minors to have a medical clearance for hearing aid fitting?

All minors must obtain a signed release by a physician to rule out contraindications.

What is the maximum age for which results of hearing tests can be used for fitting?

Results older than 6 months cannot be used for fitting someone.

What maintenance is recommended for hearing aids?

Yearly electroacoustic analysis, use in various environments, and proper cleaning.

What two types of processing are used in digital hearing aids?

Digital signal processing algorithms and computer programming.

What is ‘gain’ in relation to hearing aids?

The difference in dB between the input and output of the hearing aid, calculated as input signal plus gain equals output.

What should be monitored frequently in children with sensorineural hearing loss?

Hearing loss should be monitored frequently due to possible unnoticed changes.

What are some advantages of binaural hearing?

Improved localization, better sound quality, and increased speech understanding in noise.

What is the purpose of directional microphones in hearing aids?

To enhance the signal-to-noise ratio for clearer sound in noisy environments.

What is 'Dynamic Range' in hearing aid selection?

The difference between a patient's loudness discomfort level and hearing threshold for sounds.

What might cause hearing aid rejection?

Improper fit, discomfort, or insufficient adaptation to device use.

What is the effectiveness of FM systems in classrooms?

FM systems improve signal-to-noise ratio and reduce background noise for better hearing.

What factors can affect the candidacy for cochlear implants in adults?

Degree of hearing loss, limited benefit from hearing aids, and age.

What does mapping in cochlear implants involve?

Establishing T-levels and C-levels to determine the comfort and clarity of sound.

What are the types of hearing loss treatable with the Baha system?

Conductive hearing loss, mixed hearing loss, and single-sided deafness.

What is one disadvantage of the infrared system in assistive listening devices?

Requires a direct line of sight to receive the signal.

What are some key components of ALD systems?

Directional mics, tabletop speakers, lapel mics.

How do cochlear implants work in the process of hearing?

They convert sound signals into electrical stimulation that activates the auditory nerve.

Why is parental involvement crucial in pediatric cochlear implant programming?

Parents can help monitor the child's responses and ensure appropriate use and acclimatization.

What is the average word exposure in professional households by age 4?

46 million words.

How might acquired hearing loss impact Erikson’s stages of development?

It can affect psychological development, as the individual may lose previous communication abilities.

What adjustments can be made for distance when using hearing aids in the classroom?

Keeping speakers as close to the listener as possible to improve sound quality.

What type of hearing loss usually requires cochlear implantation in children?

Profound bilateral sensorineural hearing loss.

What kind of feedback can cause discomfort in hearing aids?

Acoustic feedback, often exacerbated by poor fitting.

What should patients remember about the adjustment period for hearing aids?

It may take several weeks to months for the brain to adjust to new sounds.

How does using multiple channels benefit hearing aid technology?

It allows for more precise management of different frequency ranges.

What psychological impacts can audiological impairment have on children?

Speech and language delay, attention difficulties, and socialization issues.

How can hearing aids assist in classroom learning?

By providing better signal-to-noise ratios and clearer sound for instruction.

What might require frequent relays in communication with the elderly during therapy?

Ensuring they grasp what is being said amidst potential auditory challenges.

How does using assistive technology enhance children's learning?

It provides necessary auditory access, improving their language acquisition and processing skills.

What is an important aspect of pediatric cochlear implant candidacy?

Evaluation of a child’s speech perception and production capabilities.

What is involved in the pre-operative assessment for cochlear implants?

Medical evaluation, audiologic testing, and counseling regarding realistic expectations.

What role does electroacoustic analysis play in hearing aid maintenance?

It ensures that the hearing aids are functioning properly and meeting prescribed standards.

What is the primary benefit of directional technology in hearing aids?

It improves the signal-to-noise ratio based on spatial location of sounds.

What might occur if a cochlear implant's T and C levels are not properly set?

It can lead to discomfort from loud sounds or inadequate detection of softer sounds.

What concept explains the reduced sound perception in the opposite ear?

Head Shadow Effect.

What is the goal of follow-up care after cochlear implantation?

To ensure the patient is effectively using the device and to make necessary adjustments.