38 Multiple choice questions
- Click ABR
- - Reference equivalent threshold sound pressure levels
- What SPL each transducer needs at each freq. to be calibrated to 0 dB HL
- • Do not require behavioral (voluntary) responses
• Directly measures real-ear output levels across freqs.
• Can make predictions based on ear canal levels for amplified speech across freqs.
• Takes less time than behavioral measures
• Tests at more "real-life" intensities
• Realize the kid must still be calm; have several things to distract
in output of HA between the real ear and 2-cc coupler. Comparison of
exact same signal of the 2cc coupler and the signal measured in the
- Ensure meeting patient needs/targets
• Aided SII
• Functional Measurements
- -Aided SF speech
• Age-appropriate material
-Functional measurements, such as:
• SIFTER, Pre-school SIFTER
• Listening Inventory for Listening Difficulties
• Parent's APHAB
• Functional Auditory Performance Inventory
• Meaningful Auditory Performance Integration Scale; Infant-Todder Meaningful Auditory Performance Integration Scale
• PEACH, LittlEears
- -The only thing that checks for auditory neuropathy.
- Clean waveform and easy to interpret.
- Speech stimuli
- - FM compatible battery door (HA is FM compatible or DAI)
- Tamper proof (age dependent)
- Pedi earhook
- Water-resistant HAs
- Flexibility of having on omni/directional
- Turn off volume control buttons
- - Doesn't give you any lows
- Clicks are based on the best threshold in 2000-4000 Hz.
- No because it's not ear specific; only getting one ear. Could potentially get too much lows or highs.
- • Confirming behavioral responses if child's developmental age is <6 months
500 Hz; more freq. specific
• Argument for slope of click-evoked wave V latency-intensity function tells configuration of the loss
- independent measures
- DSL: children
- 2cc coupler SSPL90 +RECD
- dB eHL obtained + RETSPL + RECD = dB SPL
provide children with amplified speech that is consistently audible,
comfortable, and undistorted across the frequency spectrum. Flexible in
what intensity reference is used.
- • More helpful for counseling
• Good cross-check
- No! Youngest is 3 months, dependent on how quickly services go.
- 2000-4000 Hz
Minimum Click at 500 Hz, and then try to get 2000 and 4000 Hz to continue to work on the fitting.
- neurologic status
- RECD and ear canal response
- - Binaural fittings unless contraindicated
- Programmable aids
- Minimum of 2 year warranty
- Soft ear mold materials (silicone)
- • 500: 15-20 dB
• All other freqs.: 10 dB
• nHL - correction factor = eHL
- Ear canal length
-Ear canal occluded volume
-Head & body diffraction effects
- Adults don't have growing ears. Fitting will continually change for children. Kids don't also have a base for language.
- - The HAs will think the tones are noise.
- Never use Behavioral thresholds to fit HAs
- Not taking ear canal acoustics into account
- If testing at loud levels, compression could kick in
- Real ear to dial difference
-Difference in SPL in ear vs. dial on the audiometer
- RECD, the bigger the RECD, the greater chance of oversimplification
- Test boxes
because compatibility for FM systems, they having growing ears (easier
to switch out the ear molds), durable, and better retention.
- adult size ear canal
- SII of <0.65 correlates w/ greater delays in vocabulary development for losses up to moderately severe
- Confirm behavioral responses with electrophysiology (ABR)