Cochlear Implant Basics & Referral Flashcards

A patient with single-sided deafness (SSD) inquires about cochlear implantation. What should the audiologist know?

Answer: Cochlear implants have FDA approval for SSD in adults and are used to restore binaural input

The FDA approved cochlear implants for single-sided deafness in adults in 2019, providing a binaural solution rather than just routing sound to the better ear.

Which test is most useful for assessing a potential pediatric cochlear implant candidate who cannot perform behavioral audiometry reliably?

Answer: Auditory brainstem response (ABR) with tone bursts

Tone-burst ABR provides frequency-specific threshold estimates without requiring behavioral response, making it essential for young or difficult-to-test children.

After cochlear implant activation, a patient reports hearing only beeps and no speech. The audiologist should:

Answer: Reassure the patient that auditory learning and cortical reorganization take time after activation

Initial sound perception post-activation is often unnatural; the brain requires time and auditory therapy to learn to interpret electrical signals as meaningful sound.

How does tonotopic organization factor into cochlear implant electrode placement?

Answer: Apical electrodes stimulate lower-frequency regions and basal electrodes stimulate higher-frequency regions, mimicking normal cochlear tonotopy

The cochlea is tonotopically organized with high frequencies at the base and low frequencies at the apex; electrode placement attempts to replicate this frequency mapping.

A referring audiologist documents that an adult patient has a 3-frequency PTA of 95 dB HL bilaterally with 20% aided sentence recognition. The most appropriate referral is to:

Answer: A cochlear implant center for evaluation

A PTA of 95 dB HL with only 20% aided sentence recognition clearly meets cochlear implant candidacy criteria, warranting immediate referral to a CI center.

Which counseling point about MRI compatibility is most important for a new cochlear implant recipient?

Answer: MRI compatibility varies by device; patients must inform radiologists of their implant before any MRI procedure

MRI compatibility depends on the specific device model and field strength; patients must always disclose their implant to medical staff, and protocols vary by manufacturer.

Which insurance consideration is most relevant when referring a patient for cochlear implant evaluation?

Answer: Most private insurance and Medicare cover cochlear implants when candidacy criteria are met, but prior authorization is typically required

Medicare and most private insurers cover cochlear implants when the patient meets candidacy criteria, but prior authorization and documentation of candidacy are typically required.