aural test #2

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aural test #2
2011-03-27 19:59:18
aural test

aural test #2
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  1. CIC (completely-in-canal)
    • smallest
    • mild to moderate
    • Pros: discret
    • cons: 1 mic, small aid battery, repair issues
    • no telecoil
  2. ITC (in-the-canal)
    • mild to moderate
    • pros: smaller in the ear product, fits 2 mics
    • cons:dexterity issues
  3. ITE (in-the-ear)
    mild to severe

    • pros: 2 mics, better features
    • cons: unattractive
  4. BTE (behind-the-ear)

    • pro: fewer repairs, 2 mics, good for children whose ears will be growing
    • cons: larger, cosmetic
  5. open fit BTEs
    • more comfortable for patients
    • mild to moderate
    • does not occlude (block) the ear
  6. What considerations must be included in choosing a style?
    • lifestyle
    • costs
    • degree
    • physical status
    • preference
    • activities
  7. What are the main components of all hearing aids?
    • mic
    • amp
    • batteries (rec'r)

  8. What about the audiogram indicates whether someone is a good candidate or not?
    speech discrimination
  9. Be familiar with how to troubleshoot a hearing aid
  10. What is the signal to noise ratio?
    comparison b/w stimulus and noise
  11. Noise considerations
    noise sources in rooms- ambient noise- 35 dB, poor arrangement, reverberation, size/distance
  12. How can you make the signal to noise ratio better?
    decrease the distance
  13. Soundfield -pros and cons
    benefits- reduced vocal strain, improves SNR (primary purpose)
  14. Soundfield-components of a SF system
    • mic
    • transmitter
    • rec'r
    • speaker

    MR TS
  15. FM systems- What are they? Why do we use them?
    uses signal to transmit, pass through walls

    • -sends a signal straight to the hearing aid
    • mic
    • transmitter
    • rec'r-attaches to HA

    *provides no advantage to others.
  16. ALDs-list and describe
    • Personal listening device (ear level)
    • -mic/amp worn by user
    • Amplified telephone
    • TTY- teletype phone
    • TAP-telecomm accessibility program
  17. ALDs- know some resources available for obtaining some ALDs
    • CC- (closed captioning)
    • TV ears
    • Flashers/Shakers-light or shaking source when something is happening ie doorbell ring
  18. cochlear implants-components
    • mic
    • speech processor
    • transmitter

  19. cochlear implants-criteria for candidacy
  20. cochlear implant-how an implant works
    internal- reciever, electrode arroy

    external- mic, speech processor, transmitter
  21. cochlear implant-manufacturers for implants
    • cochlear cor
    • advanced bionics
    • med-el
  22. How does a BAHA work?
    directly stimulate cochlea through bone conduction
  23. What kinds of hearing loss are BAHAs used for?
    • conductive
    • mixed
    • single side deafness
  24. Components of a BAHA?
    external: mic, amp, mechanical oscillator

    internal: titanium abutment, titanium screw
  25. Candidacy criteria for BAHAs
    at least 5 years
  26. HEAR NOW
    • provides HAs for individuals who qualify based on income criteria
    • Starkey Foundation
    • $150 application fee
    • (volunteer service)-Audiologist
  27. A cochlear implant is only appropriate for someone with a severe to profound ________ hearing loss.
  28. List the 3 parts of a cochlear implant's external device:
    • microphone
    • connecting cables
    • speech processor
    • transmitter
  29. Which of the following styles of hearing aids is usually the smallest?
  30. What is Dr. Tripp's definition of aural rehabilitation?
    services provided to decrease the consequences of hearing loss.
  31. Which style of aid is most appropriate for children?
  32. List the 3 main components common to all hearing aids.
    • microphone
    • amp
    • batteries
  33. Our text suggests 5 considerations that must be taken into account when choosing a hearing aid style for the patient. List 2 of them.
    • lifestyle, job
    • severity of hearing level
  34. Why do some hearing aids have multiple memories?
    allow users to select strategies according to their listening environment.
  35. List 3 components that are common to all hearing aids:
    microphone, amp, battery
  36. What is a telecoil?
    • used to talk on the phone
    • -uses the magnetic field produced by the phone
  37. feedback
    continual growth of sound as sounds enter and re-enter an acoustical circuit
  38. What is a telecoil used for?
    minimizes acoustic feedback problems/prevents the transmission of ambient room noise
  39. What is one advantage for choosing BTEs when fitting children?
    If a child who uses BTE is still growing, the earmold can simply be recast when the ear outgrows the existing one. BTE have fewer problems with feedback.
  40. How are Middle Ear Implant Hearing Aids different from other hearing aids?
    A middle ear implant converts the sound signal into a microphone vibration and transmits it directly to the ossicular chain.
  41. Briefly describe the heraing aid orientation process and audiologist must go through with a patient.
    An audiologist must describe the function and controls with the patient. The audiologist must also describe maintenance information as well as practicing inserting and taking out hearing aid. The audiologist to the patient must demonstrate education of the hearing aid.
  42. 5 considerations does our text suggest must be taken into account when choosing a hearing aid style for the patient?
    degree of hearing loss, user preference, costs, lifestyle, physical status
  43. T or F 2 microphones helps someone better in noise.
  44. stethoset
    listens to hearing aids
  45. BAHA
    Bone Anchored Hearing Aid
  46. process of BAHA
    titanium screw surgically place in the mastoid process
  47. How old you have to be have a BAHA?
    5 years old
  48. Cochlear Implants is caused by
    damage to hair cells in cochlea, stimulate Aud. nerve directly
  49. ossiointrigation
    joining of the bone and titanium screw
  50. process of getting CI
    • diagnosis
    • hearing aid trial
    • surgery
    • activation- 6 wks
    • AR program
  51. Deaf culture
    • CIs-bad
    • deafness is not a handicap
  52. Roots Deaf Culture
    • post WWII
    • introduced sign
  53. inverse square law
    double distance and subtract 6

    • 5 ft and 55 dB
    • 10 ft and 49 dB
  54. What is the primary purpose of Sound Field System?
    • benefits:
    • reduced vocal strain
    • *improves SNR
  55. FM systems
    can pass through walls
  56. infrared
    • tv-remote
    • 'line of sight"
    • problems w/ light interference
  57. Personal FM system
    *provides no advantage to other