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31 True/False questions

  1. Mixed HL-both outer/middle ear and cochlea/nerve problems.

    -AC = BAD
    -BC = BAD
    -ABG = YES

    AC worse BC

          

  2. Symbols: BCUnmasked
    -Right ear: <
    -Left ear: >
    -Forehead: ^
    Masked:
    -Right ear: [
    -Left ear: ]

    -Connect symbols w/ dotted lines

          

  3. What can cause a Retrocochlear HL?-Genetics: Auditory Neuropathy
    -Hereditary: NF2

          

  4. Perceptual Consequences of a Conductive HL-Distortion of speech
    -Hearing in noise
    -Difficulty hearing HF sounds
    -Tinnitus

          

  5. Conductive HL and Components-Anything past the cochlea is central
    -SNHL (retrocochlear)
    - Central aud. processing

    -Components of Aud. pathway: auditory cortex, med. geniculate body, inferior colliculus, cochlear nucleus

          

  6. Symmetrical VS. Asymmetrical•Symmetrical: equal loss in both ears

    •Asymmetrical: loss in both ears, but one is worse than the other

          

  7. Central HL and Components-Usually due to damage to the cochlea or auditory nerve

    -AC = BAD
    -BC= BAD
    -ABG = NO

    -ALL Components: cochlea, hair cells, 8th CN, spinal ganglion, central aud. path

    -Sensory Components: cochlea, hair cells (Peripheral)

    -Neural Components: 8th CN, Spinal ganglion, central Aud. path (Central)

          

  8. Symbols: ACUnmasked
    -Right ear: <
    -Left ear: >
    -Forehead: ^
    Masked:
    -Right ear: [
    -Left ear: ]

    -Connect symbols w/ dotted lines

          

  9. Perceptual Consequences of a SNHL-Distortion of speech
    -Hearing in noise
    -Difficulty hearing HF sounds
    -Tinnitus

          

  10. Absolute thresholdwhat we mark, the lowest level they respond at 50% of the time

          

  11. Define: Congenital, Acquired, and Adventitious•Acute: severe developed fast (mostly used w/ ear infections); typically for conductive loss

    •Chronic: has lasted a long time; typically for conductive loss

    •Sudden: woke up one day and all of the sudden can't hear

    •Gradual: slowly over time

          

  12. What can cause a Conductive HL?-Excessive Noise exposure
    -Genetics
    -S.T.O.R.C.H.
    -Hereditary

          

  13. Symbols: Sound FieldAdd to any symbol:
    -Right ear: ↙
    -Left ear:↘

    -Don't connect

          

  14. Define: Acute, Chronic, Sudden, and Gradual•Acute: severe developed fast (mostly used w/ ear infections); typically for conductive loss

    •Chronic: has lasted a long time; typically for conductive loss

    •Sudden: woke up one day and all of the sudden can't hear

    •Gradual: slowly over time

          

  15. Define: Temporary, Permanent, Progressive, and Fluctuating•Temporary: will go away

    •Permanent: will always have

    •Progressive: keeps getting worse over time

    •Fluctuating: comes and goes

          

  16. Symbols: No ResponseAdd to any symbol:
    -Right ear: ↙
    -Left ear:↘

    -Don't connect

          

  17. Configurations-Flat
    -Sloping
    -Rising
    -Precipitous (> 20 dB diff. in θs b/w 2 adjacent freq.)
    -Trough ("cookie bite")
    -Inverted Trough
    -Fragmentary
    -Carhart's Notch (2K)
    -Noise Notch (b/w 3K-6K; comes back up after 6K-8K)
    -High Freq. (drops ~3K and above)

          

  18. Perceptual Consequences of a Retrocochlear HL-Distortion
    -Desynchronize firing
    -Fluctuating HL

          

  19. Routes of Sound Transmission-Non ear specific: S

          

  20. Unilateral VS. Bilateral•Unilateral: one sided (one ear)

    •Bilateral: two sided (both ears)

          

  21. Vibrotactile Limits and Symbols-250 Hz = 25 dB HL
    -500 Hz = 55 dB HL
    -1K-8K Hz = 70 dB HL

    Symbols:
    -Right ear: <vt?
    -Left ear:>vt?

          

  22. SNHL HL and Components-Usually due to damage to the cochlea or auditory nerve

    -AC = BAD
    -BC= BAD
    -ABG = NO

    -ALL Components: cochlea, hair cells, 8th CN, spinal ganglion, central aud. path

    -Sensory Components: cochlea, hair cells (Peripheral)

    -Neural Components: 8th CN, Spinal ganglion, central Aud. path (Central)

          

  23. General Types of HL•Peripheral
    •Central
    •Functional

          

  24. Degree: ChildrenNormal= -10 to 15 dB HL
    Slight= 16 to 25 dB HL
    Mild= 26 to 40 dB HL
    Moderate= 41 to 55 dB HL
    Moderately Severe= 56 to 70 dB HL
    Severe= 71 to 90 dB HL
    Profound = >90 dB HL

          

  25. Peripheral HL-Conductive
    -SNHL (cochlear)
    -Mixed

          

  26. What can cause a SNHL?-Excessive Noise exposure
    -Genetics
    -S.T.O.R.C.H.
    -Hereditary

          

  27. Retrocochlear-Acts like they can't hear, but there is no damage.
    -Pseudohypacusis (malingering or psychological)

          

  28. Abscissa VS. Ordinate•Abscissa (horizontal): freq. measured in Hz

    •Ordinate (vertical): dB HL; intensity (Amp.)

          

  29. Pseudohypacusis:

    Malingering
    VS.
    Psychological
    •Symmetrical: equal loss in both ears

    •Asymmetrical: loss in both ears, but one is worse than the other

          

  30. Degree: AdultsNormal= -10 to 25 dB HL
    Mild= 26 to 40 dB HL
    Moderate= 41 to 55 dB HL
    Moderately Severe= 56 to 70 dB HL
    Severe= 71 to 90 dB HL
    Profound = >90 dB HL

          

  31. Functional HL-Conductive
    -SNHL (cochlear)
    -Mixed