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31 Multiple choice questions

  1. -Anything past the cochlea is central
    -SNHL (retrocochlear)
    - Central aud. processing

    -Components of Aud. pathway: auditory cortex, med. geniculate body, inferior colliculus, cochlear nucleus
  2. -Non ear specific: S
  3. -Usually temporary: Medical intervention
    -Cerumen impaction
    -TM perforation
    -Otitis Media or Sterile -Fluid
    -Otosclerosis
  4. -250 Hz = 25 dB HL
    -500 Hz = 55 dB HL
    -1K-8K Hz = 70 dB HL

    Symbols:
    -Right ear: <vt?
    -Left ear:>vt?
  5. -Attenuation
    -Loudness
    -"Plugged up"
  6. what we mark, the lowest level they respond at 50% of the time
  7. Normal= -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
  8. Unmasked
    -Right ear: <
    -Left ear: >
    -Forehead: ^
    Masked:
    -Right ear: [
    -Left ear: ]

    -Connect symbols w/ dotted lines
  9. •Congenital: born with it

    •Acquired: developed after birth

    •Adventitious: something took advantage of the system and there is a sudden HL
  10. the 8th nerve and beyond
  11. Add to any symbol:
    -Right ear: ↙
    -Left ear:↘

    -Don't connect
  12. •Peripheral
    •Central
    •Functional
  13. •Malingering: flat out faking, doing it on purpose

    •Psychological: no cause for it, but have a hearing loss, but using it for help to cope with a traumatic situation (bombings, PTSD).
  14. -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)
  15. •Unilateral: one sided (one ear)

    •Bilateral: two sided (both ears)
  16. •Abscissa (horizontal): freq. measured in Hz

    •Ordinate (vertical): dB HL; intensity (Amp.)
  17. -Usually due to outer or middle ear problems

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

    -Components: O.E., E.C., T.M., & M.E.
  18. •Symmetrical: equal loss in both ears

    •Asymmetrical: loss in both ears, but one is worse than the other
  19. Normal= -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
  20. -Genetics: Auditory Neuropathy
    -Hereditary: NF2
  21. Unmasked:
    -Right ear: O
    -Left ear: X

    Masked
    -Right ear: Δ
    -Left ear: ⃤

    -Connect symbols w/ line
  22. -Acts like they can't hear, but there is no damage.
    -Pseudohypacusis (malingering or psychological)
  23. •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
  24. •Temporary: will go away

    •Permanent: will always have

    •Progressive: keeps getting worse over time

    •Fluctuating: comes and goes
  25. -Conductive
    -SNHL (cochlear)
    -Mixed
  26. -both outer/middle ear and cochlea/nerve problems.

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

    AC worse BC
  27. -Excessive Noise exposure
    -Genetics
    -S.T.O.R.C.H.
    -Hereditary
  28. -Distortion of speech
    -Hearing in noise
    -Difficulty hearing HF sounds
    -Tinnitus
  29. -Distortion
    -Desynchronize firing
    -Fluctuating HL
  30. -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)
  31. •AC: looks for conductive loss
    -Tells degree and configuration of loss

    •BC: shakes fluid in the middle ear to see if there are other components to the loss by bypassing the O.E. & M.E.
    -Tells nature of loss