AB Guest Flashcards
(23 cards)
Do pulse width and rate have an inverse relationship?
Yes
What does the map include?
Electrical parameters
What does the program include?
Map settings and front end processing features
Programmed in fine tuning tab
Do you set M-levels in the software?
Yes, do not need to do that with T-levels (set automatically)
M-levels - most-comfortable level (upper stimulation level)
T-levels - lower stimulation level
*can change T-levels if you need to
Can you measure your M-levels individually or grouping?
Yes
The grouping is more similar to speech
Individually will sound more like electrical stimulation
What does IDR stand for?
Input dynamic range
Is the IDR automatically set?
Yes, it’s set to 60 automatically
Can be adjusted
Wider the IDR, the more emphasis you get on soft level sound
*the reason why you don’t have to adjust your T-levels
Are wider IDRs especially important for peds?
Yes, so they can get those soft-level sounds that are crucial for language development
Does the IDR adjust the M-level?
No
What is clear voice?
Steady state noise processing
Constantly analyzing the environment
With progressive levels, can patients increase it themselves?
Yes
This can be set due to the fact that most patients will adjust to the sound of their M-level that was set in clinic and it will sound softer for them
What was a 6 (comfortable) could turn into a 3 with time (scale is from 0-10)
Are there validation measures for CIs?
No, not besides throwing them in a booth and seeing how they perform
You rely a lot on patient reporting for this instead
Are external mics covered with the waterproof cover?
Yes, that’s why you need a new program
What is the only objective data to get from the implant?
Impedances and NRI (neural response imaging)
What loudness scale do you use for peds?
Simplified
Too quiet
Comfortable
Too loud
What is direct touch?
It sets the focus of directionality to the side that the program was enabled with (R or L)
This only occurs if it is enabled
What ear should you set as the bluetooth ear?
The CI side due to there being less of a need to send that device into the manufacturer for repair
What is NRI?
Looking for N1 and P2 response
Looks at neural synchrony where the electrode is stimulating
Run on an electrode by electrode basis
Watching the response grow for each individual electrode
Requires careful consideration on the audiologist because the system is not perfect - might need to adjust the NRI response on a given electrode
Only classified as a response if it is 20 microvolts or greater
Look for a clear trough (N1) and peak (P2)
Need at least 3 growth responses as well as consecutive responses with increasing intensity levels and 2 noise floor responses
*May not have NRIs at areas where there has been long-standing loss
What are the different labels for NRIs?
AutoArt - Med-El
NRT - Cochlear
What do you get after you plot NRIs?
Regression line - only obtained when you confirm the responses were true responses
Gets a threshold of NRI response
Changes tNRI value
When do you use tNRI values?
With peds to gauge where their M-levels will be
Gives objective data for this process
Are you more likely to get NRI responses with a wireless connection?
Yes, because they can do whatever they want, as long as they keep it on their heads
Can do more
Can increase data points too so it goes faster
Will NRI responses change?
No
They stay consistent
