AudiologyOnline Phone: 800-753-2160


Exam Preview

Foundations of Cochlear Implants: Nucleus Implants and Considerations for Surgery

View Course Details Please note: exam questions are subject to change.


1.  In the normal-hearing ear, the auditory nerve receives a signal from:
  1. The outer hair cells
  2. The inner hair cells
  3. Both outer and inner hair cells
  4. The incus
2.  What electrode features predict good performance?
  1. Greater number of electrodes in scala tympani
  2. Absence of translocation from scala tympani to scala vestibuli
  3. Reduced distance to the modiolus
  4. All of the above
3.  The slim modiolar (CI532) electrode is designed to:
  1. Be as rigid as possible
  2. Allow consistent placement of 22 electrodes in scala tympani
  3. Have shorter depth of insertion than traditional electrode arrays
  4. Be a backup electrode array only
4.  Perimodiolar positioning provides:
  1. Less spread of excitation
  2. More focused stimulation
  3. Greater power efficiency
  4. All of the above
5.  The Hybrid L24 implant has:
  1. A reduced insertion angle (~250 degrees) for hearing preservation
  2. A versatile insertion depth, depending on surgical preference
  3. A longer electrode with a larger diameter than a traditional electrode array
  4. A stylette for insertion
6.  The advantage(s) of cochlear implant magnet removal for MRI is(are):
  1. Reduced risk of pain and discomfort
  2. A reduced image artifact
  3. Both A and B
  4. There is no advantage to magnet removal for MRI
7.  For MRI up to 1.5 Tesla with the magnet in place (for CI24RE and CI5000 series implants), the use of the following is required:
  1. An anesthesiologist and general anesthesia for the patient
  2. An audiologist to test the implant
  3. An MRI splint kit to wrap around the magnet site
  4. A sterile non-magnetic plug
8.  Pre-operative radiographic studies are used to:
  1. Delineate cochlear anatomy
  2. Evaluate the cochlea for fibrous tissue and/or ossification
  3. Ensure the presence of an auditory nerve
  4. All of the above
9.  Which of the following vaccinations is required prior to cochlear implant surgery according to the Centers for Disease Control (CDC)?
  1. Measles, Mumps, Rubella Vaccine (MMR)
  2. Meningitis Vaccine
  3. Flu Vaccine
  4. Tetanus Vaccine
10.  A transorbital x-ray can be used during surgery to:
  1. Confirm placement of the electrode array
  2. Confirm the neural response from the auditory nerve in response to the electrode
  3. Confirm device function
  4. None of the above

Our site uses cookies to improve your experience. By using our site, you agree to our Privacy Policy.