Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
6 Cards in this Set
- Front
- Back
|
List types of hearing aids for the hearing impaired.
|
behind-the-ear // in-the-ear // in-the-canal and completely-in-the-canal
|
|
|
Explain behind-the-ear models of hearing aids:
|
the electronics are in a plastic case that is located behind the ear while the conductive piece fits at the opening of the ear canal
|
|
|
Explain in-the-ear models of hearing aids:
|
fit inside the ear // these devices are not recommended for younger clients, given that children's ears grow continuously
|
|
|
Explain in-the-canal and completely-in-the-canal models of hearing aids:
|
devices are very small and are placed within the ear canal // may not be appropriate for those who have difficulty with finger manipulation // also small size limits their power - so not recommended for severe hearing loss // inappropriate for growing children
|
|
|
Explain the important aspects of hearing assessment in infants and young children.
|
The detection of hearing loss in infancy is important in that hearing impairments negatively affect language and speech acquisition. Testting in the first 3 months of life is recommended to prevent speech developmental delays. Children who have experienced intrauterine complications, birth trauma, or low birth weight or who have a genetic predispositions or autism are at greater risk of hearing impairments. Given the obvious difficulty in assessing infants and young children for hearing deficits, modalities other than standard audiometry are used. The use of localization techniques is most common.
|
|
|
Describe the types of devices used in hearing evaluations:
|
A clinician's physical examination of the head structures is the first step in the evaluation of hearing deficits. Audiometry is the standard device used in identifying hearing deficits. An examiner uses a machine (audiometer) that produces sounds within specified spectrums. Earphones are placed on the subject who is in a soundproof booth. The subject is asked if each sound is detected. Pure tone air audiometry testing measures hearing ability to different pitches and volumes. Speech audiometry measures hearing ability to spoken words. This involves volume and discrimination of words and sounds. Tympanometry is used to measure movement of the ear drum in response to auditory stimuli at various frequencies. This method is used to detect abnormalities in the middle ear, such as infection or middle ear obstruction. Clinicians may also use brain-imaging technologies, such as MRI and CT scans, to detect structural abnormalities.
|
