acoustic immittance otoacoustic emissions auditory evoked potentials objective tests
TRANSCRIPT
![Page 1: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/1.jpg)
Acoustic Immittance
Otoacoustic Emissions
Auditory Evoked Potentials
Objective Tests
![Page 2: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/2.jpg)
Instrumentation
Ear Canal Measurements
Static Immittance (compliance)
Tympanometry
Acoustic Reflexes
Acoustic Immittance
![Page 3: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/3.jpg)
Instrumentation
sound source
air pump
analysis section
acoustic reflex stimulus
Acoustic Immittance
![Page 4: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/4.jpg)
Ear canal volume predicted by intensity of reflected sound
Acoustic Immittance
![Page 5: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/5.jpg)
![Page 6: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/6.jpg)
Ear Canal Volume Normative Data
Adults
Mean = 1.5 mL
90% range = 0.6 to 1.5 mL
Children
Mean = 0.7 mL
90% range = 0.4 to 1.0 mL
Acoustic Immittance
![Page 7: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/7.jpg)
Static immittance is the measurement of tympanic membrane and middle ear mobility
Normative Data for Adults
Mean = 0.8 mL
90% range = 0.3 to 1.4 mL
Normative Data for Children
Mean = 0.5 mL
90% range = 0.2 to 0.9 mL
Acoustic Immittance
![Page 8: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/8.jpg)
Tympanometry tracks changes in static immittance over time
Acoustic Immittance
![Page 9: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/9.jpg)
Tympanometric (Jerger) types
Acoustic Immittance
![Page 10: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/10.jpg)
Tympanometric (Jerger) types
Acoustic Immittance
![Page 11: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/11.jpg)
Tympanometric Shape (as recommended by ASHA)
Width of the tympanogram at the 50% amplitude point
Acoustic Immittance
![Page 12: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/12.jpg)
Acoustic Immittance
![Page 13: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/13.jpg)
Normative data for tympanomeric shape
Adults
Mean = 80 daPa
90% range = 50 to 110 daPa
Children
Mean = 100 daPa
90% range = 60 to 150 daPa
Acoustic Immittance
![Page 14: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/14.jpg)
Acoustic Reflex Anatomy and Physiology
Acoustic Immittance
![Page 15: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/15.jpg)
Acoustic Reflex Anatomy and Physiology
Acoustic Immittance
![Page 16: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/16.jpg)
Acoustic Reflex Threshold
Definition
ART for pure tones = 85 to 95 dB HL for normally hearing people
ART for Speech = 10 to 20 dB less for pure tones
Doesn’t change in people with cochlear loss (up to 50 dB HL)
Acoustic Immittance
![Page 17: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/17.jpg)
Conductive Loss
Sensorineural Loss
Cochlear Loss
Retrocochlear Loss
Diagnostic Significance
![Page 18: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/18.jpg)
Instrumentation
Otoacoustic Emissions
![Page 19: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/19.jpg)
Function
Otoacoustic Emissions
![Page 20: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/20.jpg)
Transient Otoacoustic Emissions (TOAEs)
Distortion Product Otoacoustic Emissions (DPOAE)
Otoacoustic Emissions
![Page 21: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/21.jpg)
Application
neonatal hearing screening
differential diagnosis
monitoring cochlear damage
Otoacoustic Emissions
![Page 22: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/22.jpg)
Instrumentation
Auditory Brainstem Response Audiometry (ABR)
Other AEPs
Auditory Evoked Potentials
![Page 23: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/23.jpg)
Instrumentation
Auditory Evoked Potentials
![Page 24: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/24.jpg)
Auditory Evoked Potentials
![Page 25: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/25.jpg)
Auditory Brainstem Response (ABR)
Applications
differential diagnosis
auditory threshold testing
neonatal hearing screening
neurosurgical interoperative monitoring
Auditory Evoked Potentials
![Page 26: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/26.jpg)
Interpertation for ABR
latency
amplitude
morphology
Auditory Evoked Potentials
![Page 27: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/27.jpg)
Auditory Evoked Potentials
Summary of Auditory Evoked Potentials
AEP Site Application
Electrocochleography VIII Nerve Hearing Testing
ABR VIII Nerve and Brainstem See Previous
Middle Latency Response Primary Auditory Cortex Hearing Testing
Late Vertex Response Upper Level Cortex Central Auditory Problems
P300 Frontal Lobe Physiological Psychology
![Page 28: Acoustic Immittance Otoacoustic Emissions Auditory Evoked Potentials Objective Tests](https://reader036.vdocument.in/reader036/viewer/2022062304/56649f265503460f94c3d301/html5/thumbnails/28.jpg)
you are not responsible for chapter 7 of text
Summary