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CSD 356 test #3 || 100% correct answers.
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  • CSD 356
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  • CSD 356

How are CI's different from hearing aids? correct answers Hearing Aids can be updated and uses the normal auditory pathway for all HL but Cochlear Implants are only for SNHL and only use the technology available at that time •Hearing aids correct answers most will do 99% good w/them send soun...

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  • August 2, 2024
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • how are cis different from hearing aids

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  • CSD 356
  • CSD 356

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CSD 356 test #3 || 100% correct answers.
How are CI's different from hearing aids? correct answers Hearing Aids can be updated and
uses the normal auditory pathway for all HL but Cochlear Implants are only for SNHL and
only use the technology available at that time

•Hearing aids correct answers most will do 99% good w/them
send sound through normal pathway of sound
acoustically amplify sound
focus on speech understanding

•Cochlear Implants: correct answers --people that dint do well w/HA because they dint meet
persons needs.
--by pass damage hair cells it directly stimulates the nerves through application of external
electrical current. --no improvement of normal hearing
--only for SNHL

CI doesn't use correct answers OE,ME,IE

CI Parts: correct answers •Internal Device
----Receiver/stimulator
----Electrode array

•External Device
----Speech processor
----Transmitting coil

3 Implant companies correct answers *Cochlear Corporation
*Advanced Bionics
Med-El
(* the biggest companies)

How a CI works: correct answers It has 5 steps
sound is send to processor with is send to the coil then is send to the skin which stimulates
the 8th nerve.

1.Sound waves enter the system through the _________ located on the _____ ___. Processor
converts the sound into a ____ ___ that has been programmed to maximize ________ and
_____ _____. correct answers Microphone

speech processor

Digital signal

sound

speech understanding

2.Once processed, the electrically coded ____ is sent to the _____ ______ and transmitted
through the ___ via ____ ____ ____ to the implant. correct answers Signal

, transmitting coil (head piece)

skin

radio frequency waves

3.The _____ receives the signal and delivers it to the array of ______ positioned inside the
______. correct answers implant

electrodes

cochlea

4.The _______ stimulate the ____ _____ ____ within the cochlea. correct answers electrodes

hearing never fibers

5.The _____ sends the signal to the ______ for interpretation correct answers nerve

brain

CI candidacy correct answers Dependes on the age of the patient
•Child (12 to 24 months)
•Child (2 years to 18 years)
•ADULTS (18 years and older)

CI candidacy for Child (12 to 24 months) correct answers --PROFOUND SNHL in both ears
--Lack of progress in the development of auditory skills (HA are not working after 6months)
--No medical contraindications
--High motivation and appropriate expectations from family
**1 exception is in case of bacteria meningitis under 12months**

CI candidacy for Child (2 years to 18 years) correct answers --SEVERE to PROFOUND
SNHL in both ears
--cnt understand 78% of time
--word understanding of 30% or less in the best aided condition
--Lack of progress in the development of auditory skills(HA nt working after 6months)
--No medical contraindications
--High motivation and appropriate expectations from family and/or child

CI candidacy for ADULTS (18 years and older) correct answers --MOD-SEVER-to-
PROFOUND bilateral SNHL
--No medical contraindications
--Have to try HA for @ least 6 months
< 50% word recantation threshold
< 60% in the best condition
--High motivation and appropriate expectations

Possible Benefits correct answers --Perceive environmental sounds

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