HA Styles
List six styles of hearing aids.
What are 1.) standards BTE 2.) Power BTE 3.) RIC/Rite 4.) IIC 5.) CIC 6.) ITE 7.) Lyric 8.) Cross/Bi-cross
3 main effects of hearing loss?
What is 1.) decreased audibility 2.) decreased dynamic range and 3.) decreased frequency & temporal resolution
A way to track how often your patient is wearing their aids, what settings and features they are utilizing and what environments they are spending most of their time in.
What is data logging?
Name the two most common fitting formulas. 1.) for adults. 2.) for kids.
What is 1.) NAL-NL2 2.) DSL 5.0
Which size battery is the brown color?
What is size 312?
including this will allow air and natural sounds to pass through. The goal is to reduce the occlusion effect and allow passage of low frequency sounds.
A systematic decrease, over time, in auditory performance associated with reduced availability of acoustic information. Shows itself clinically in decrease in speech understanding ability overtime, even though pure tone thresholds might not change.
What is auditory deprivation?
different amounts of gain applied based on input in order to fit environmental sounds into the patients dynamic range.
What is compression?
The goal of this is to ensure that loud sounds are not too loud and to prevent further damage to the auditory system.
What is MPO?
This is a cavity used connect the hearing aid to the test mic, and there are different types depending on BTE or ITE.
What is a coupler?
What is silicone?
List 4 benefits of binaural data sharing.
What are 1.) improves head shadow effect. 2.) improves localization. 3.) improves loudness summation. 4.) decreases risk of auditory deprivation. 5.) helps with balance 6.) speech understanding in noise.
A way to set your patients aids to slowly increase the gain to a specified target over a period of time.
What is auto acclimatization?
If there is an output of 85db and gain or 15dB, what was the input?
What is 70db?
Test of HA function, should be completed in the test box prior to patient fitting. Each HA company has an individual SPEC sheet to ensure individual standards are met.
What is the ANSI test sequence?
What is the difference between a cross and a bicross?
What is neural plasticity and potential cochlear dead regions?
Name and describe the 3 methods of frequency lowering.
What is 1.) frequency transposition-cut and pasted below the start frequency 2.) frequency compression-high frequency input is compressed into a lower frequency range 3.) High frequency reinforcement, high frequency is copy and pasted to 1 octave below in the speech frequency range, but also left in high frequencies too as reinforcement
Name the primary goals for NAL-NL2 and DSL 5.0
What is 1.) NAL-NL2 is to maximize audibility, speech intelligibility and speech perfection *comfort* 2.) DSL 5.0 maximize gain for speech language acquisition?
List 3 things you can do to reduce feedback for your patient?
What is 1.) otoscopy to make sure no cerumen. 2.) is the aid inserted correctly 3.) ensure no leak or cracked tubing/ear hook. 4.) decrease the vent size 5.) ear mold tighter fit for more retention 6.) run feedback manager
What is the purpose of a sound bore?
What is it to increase the high frequencies?
Name 6 FDA red flags that must warrant physician approval of hearing aids.
What is 1.) visible congenital or traumatic deformity of the ear 2.) history of active drainage in the past 90 days 3.) history of sudden or rapidly progressive loss in the past 90 days 4.) acute or chronic dizziness 5.) Unilateral HL of sudden (past 90 days) onset 6.) ABG 15dB at 500, 1000 & 2000 hz 7.) significant cerumen accumulation or foreign body in EAC 8.) pain or discomfort in the ear
What are the two ways to apply compression?
What is wide dynamic range compression and output limiting compression?
Will decreasing gain for loud sounds increase or decrease the compression ratio?
What is increase?
Name the three properties that are used to determine speech vs noise.
What is 1.) location 2.) frequency temporal resolution 3.) amplitude