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38 Multiple choice questions

  1. tuning forks
  2. Inertial properties of the bones composing the skull causing them to vibrate in response to the BC oscillator. This method of stimulation dominates the low freq.
  3. the absolute pressure reference level for the dB.
  4. They eliminate the problem of collapsed ear canals experienced with supra-aural earphones.
  5. The handheld button provides only binary (yes/no) information.

    Additional information can be obtained about the subject by observing the amplitude and speed of hand/finger raising.
  6. a false-positive response (responding when the stimuli is no longer present)
  7. a measure of effect that hearing loss has on psychosocial function
  8. It is important for speech perception
  9. It's importance in diagnosing noise-induced hearing loss
  10. Refers to the limitation on function imposed by a hearing loss
  11. compares AC to BC sensitivity
  12. ABR and OAEs

    Overtime, it is likely that we will start using automated equipment for pure-tone testing.
  13. a false-negative response (failing to respond even when the stimuli is still audible)
  14. For mass screenings, such as industrial hearing conservation programs
  15. to specify the intensity of stimuli presented to a given patient relative to the patient's threshold.
  16. the reference to average normal hearing sensitivity
  17. Frequencies below 20 Hz
  18. When the skull is set into motion with a BC vibrator, the structures of the ossicular chain are not rigidly attached, and there is a lag in their movement relative to the skull movement.
  19. The use of supra-aural earphones
  20. involves deficits in processing auditory info not attributed to impairment in peripheral hearing mechanism or intellect
  21. assesses the presence of conductive hearing loss
  22. When the patient is faking a hearing loss (pseudohypoacusis)
  23. Handwashing
  24. It uses techniques from both the ascending and descending methods.

    Developed to reduce the influences of preservation and inhibition. This procedure uses an ascending technique to determine threshold. Each threshold search is preceded by a descending familiarization trail.
  25. individuals w/ hearing loss that can identify enough of the distinguishing features of speech through hearing alone to permit at least partial recognition of spoken lang.
  26. It is required to obtain valid test results.
  27. Frequencies above 20,000 Hz
  28. Frequencies b/w 300 and 3000 Hz
  29. Due to the crossover of the BC test signal to the NTE.
  30. Individuals that have a severe to profound hearing loss, whose auditory sensitivity is so severely impaired that only a few or none of the prosodic and phonetic elements of speech can be recognized.
  31. used for patients reporting unilateral hearing loss.
  32. Freq. and Intensity
  33. 1. Variations in skull size and thickness of the skin and bone of the skull are uncontrollable factors

    2. It takes more energy to drive the bone oscillator

    3. Tactile responses will be obtained for BC stimulation at 250 Hz and 500 Hz at intensities b/e 25 and 55 dB HL

    4. The IA for BC is 0 dB, therefore the signal is equally present in the NTE.

    5. The effects of environmental noise are greater for BC threshold testing b/c thresholds are obtained w/out occlusion of the external ear canals.
  34. When the patient has tinnitus, especially when the test frequency is near the tinnitus freq.

    For these patients use a pulsed/warbled tone.
  35. Audiometric tuning fork tests by placing the bone oscillator on the patient's head and setting it to 35 to 45 dB HL
  36. When the skull is set into motion w/ a BC vibrator, the compression of the bones of the skull gives rise to a distortion of the inner ear structures, which in turn produces electromechanical activity in the inner ear, giving rise to the sensation of hearing.
  37. Aud. dysynchrony is a pathologic condition of the auditory sys. that involves a disruption of synchronous activity in the processes of aud. stimuli, most likely involving the 8th CN. Hearing sensitivity can be normal, or hearing loss in the mild-mod., or even severe, range can be present.

    Normal cochlear function is present.

    ABR is abnormal or elevated beyond wave.

    Speech recognition is significantly worse.
  38. Frequencies b/w 20 and 20,000 Hz.

    Although the human ear is not equally sensitive to all frequencies. The ear is MOST sensitive to mid-frequencies around 1000 Hz.