Benji Exam 2

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Benji Exam 2
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2011-05-02 20:06:26
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Benji Exam 2
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  1. 1. Which of the frequencies listed is an inter-octave frequency?
    A. 1k Hz
    B. 3k Hz
    C. 4k Hz
    D. 2k Hz
    B. 3k Hz
    (this multiple choice question has been scrambled)
  2. 2. Human hearing sensitivity measured in dB HL is ______________, because the reference for dB HL is ____________________.
    A. poorer at low frequencies, 10-12 watts/meter2
    B. equal across all frequencies, 10-12 watts/meter2
    C. poorer at low frequencies, normal human thresholds
    D. equal across all frequencies, normal human thresholds
    D. equal across all frequencies, normal human thresholds
    (this multiple choice question has been scrambled)
  3. 3. Which transducer is used to test for high frequency thresholds (above 8,000 Hz)?
    A. speakers (soundfield)
    B. circumaural earphones
    C. supra-aural earphones
    D. insert earphones
    B. circumaural earphones
    (this multiple choice question has been scrambled)
  4. 4. Which transducer cannot be used to obtain ear specific thresholds?
    A. Supra-aural earphones
    B. insert earphones
    C. circumaural earphones
    D. speakers (soundfield)
    D. speakers (soundfield)
    (this multiple choice question has been scrambled)
  5. 5. Which stimulus is typically used to obtain pure tone thresholds in children?
    A. Warble tone
    B. Steady tone
    C. Pulsed tone
    D. Narrow band noise
    A. Warble tone
    (this multiple choice question has been scrambled)
  6. 6. The air conduction threshold for the right ear at 250 Hz is ______ dB HL.
    A. 10
    B. 40
    C. 5
    D. 35
    B. 40
    (this multiple choice question has been scrambled)
  7. 7. The air conduction threshold for the left ear at 250 Hz is ______ dB HL.
    A. 35
    B. 5
    C. 10
    D. 40
    C. 10
    (this multiple choice question has been scrambled)
  8. 8. The above audiogram represents:
    A. unilateral sensorineural hearing loss in the left ear
    B. unilateral conductive hearing loss in the right ear
    C. normal hearing
    D. bilateral sensorineural hearing loss
    E. unilateral sensorineural hearing loss in the right ear
    E. unilateral sensorineural hearing loss in the right ear

    All of the thresholds for the left ear are normal (below 25 dB). The
    right ear thresholds are above 25 dB, so there is a hearing loss.
    Because there is no air-bone gap (difference between the bone conduction
    and air conduction scores are less than 15 dB) this is a sensorineural
    hearing loss.
    (this multiple choice question has been scrambled)
  9. 9. The masked air conduction threshold for the right ear at 250 Hz is ______ dB HL.
    A. 10
    B. 5
    C. no response
    D. 50
    E. 45
    D. 50
    (this multiple choice question has been scrambled)
  10. 10. The bone conduction threshold for the right ear at 250 Hz is ______ dB HL.
    A. 5
    B. 10
    C. 50
    D. no response
    E. 45
    B. 10
    (this multiple choice question has been scrambled)
  11. 11. The above audiogram represents:
    A. a conductive hearing loss in the right ear
    B. normal hearing
    C. a mixed hearing loss in the right ear
    D. a sensorineural hearing loss in the left ear
    E. a sensorineural hearing loss in the right ear
    E. a sensorineural hearing loss in the right ear

    All of the thresholds for the left ear are normal (below 25 dB). The right ear thresholds are above 25 dB, so there is a hearing loss.
    • There is a conductive component because bone conduction and air conduction scores differ by 15 dB or more.
    • This is a conductive hearing loss because the bone conduction scores are normal
    o This lets us infer that the cochlea is functioning normally; The only problem is getting sound down into the cochlea (conductive)
    (this multiple choice question has been scrambled)
  12. 12. The above audiogram represents:
    A. a mixed hearing loss
    B. normal hearing
    C. a conductive hearing loss
    D. a sensorineural hearing loss
    A. 40

    • There is a conductive component because bone conduction and air conduction scores differ by 15 dB or more
    • The bone conductions scores are also elevated (above 25 dB). Since the bone conduction represents how well the cochlea alone is doing, this means that there is a sensorineural component.
    • This is a mixed hearing loss, because there is a conductive component (air bone gap), and a sensorineural component (bone conduction thresholds that are not within normal limits).
    (this multiple choice question has been scrambled)
  13. 13. Hearing is considered to be within normal limits as long as thresholds are not higher than _______ dB HL
    A. 25
    B. 30
    C. 10
    D. 15
    A. 25
    (this multiple choice question has been scrambled)
  14. 14. The main problem in a conductive hearing loss is ________________.
    A. distortion of the sound
    B. attenuation of the sound
    C. the auditory nerve
    D. the outer hair cells
    B. attenuation of the sound
    (this multiple choice question has been scrambled)
  15. 15. Uses monosyllabic words

    A. Speech recongnition threshold (SRT)
    B. Speech awareness threshold (SAT)
    C. Word recognition score
    D. Most confortable loadness level (MCL)
    C. Word recognition score (WRS)
    (this multiple choice question has been scrambled)
  16. 16. Uses spondee (spondaic) words

    A. Speech recongnition threshold (SRT)
    B. Speech awareness threshold (SAT)
    C. Most confortable loadness level (MCL)
    D. Word recognition score
    A. Speech recognition threshold (SRT)
    (this multiple choice question has been scrambled)
  17. 17. Calculated as percent correct

    A. Most confortable loadness level (MCL)
    B. Speech recongnition threshold (SRT)
    C. Word recognition score
    D. Speech awareness threshold (SAT)
    C. Word recognition score (WRS)
    (this multiple choice question has been scrambled)
  18. 18. Evaluates the lowest intensity at which words can be correctly identified

    A. Speech awareness threshold (SAT)
    B. Speech recongnition threshold (SRT)
    C. Most confortable loadness level (MCL)
    D. Word recognition score
    B. Speech recognition threshold (SRT)
    (this multiple choice question has been scrambled)
  19. 19. Evaluates the lowest intensity at which speech sounds become audible.

    A. Word recognition score
    B. Speech awareness threshold (SAT)
    C. Most confortable loadness level (MCL)
    D. Speech recongnition threshold (SRT)
    B. Speech awareness threshold (SAT)
    (this multiple choice question has been scrambled)
  20. 20. Estimates an individual’s maximum (best) ability to understand speech.

    A. Speech awareness threshold (SAT)
    B. Speech recongnition threshold (SRT)
    C. Word recognition score
    D. Most confortable loadness level (MCL)
    C. Word recognition score (WRS)

    Word recognition score represents the patient’s best ability to understand speech. It is a percentage score, not a single loudness value (like SRT or MCL).
    Remember, the loudness level of WRS testing is based upon the patient’s SRT. If we present the sound at 40 dB above the SRT (the most common value used), it should be loud enough for the patient to hear well, because that is 40 dB above the level at which they are first able to identify words.
    E.G. Mr. Smith, you do have a hearing loss. However, we know based on the test we did when the words were loud enough for you that you got 100 % of them right. This means that if we can turn sounds up for you, with something like a hearing aid, you will probably do quite well.
    (this multiple choice question has been scrambled)
  21. 21. A patient’s SRT is 30 dB, and his uncomfortable loudness level is 90 dB. What is the patient’s dynamic range for speech?
    A. 30 dB
    B. 3 dB
    C. 120 dB
    D. 60 dB
    D. 60 dB

    Dynamic range = SRT – UCL
    Dynamic range = 90 – 30
    Dynamic range = 60 db
    (this multiple choice question has been scrambled)
  22. 22. Speech recognition threshold (SRT) and the pure tone average (PTA) should be within ____dB of each other.
    A. 5
    B. 10
    C. 15
    D. 8
    D. 8
    (this multiple choice question has been scrambled)
  23. 23. PB rollover is associated with:
    A. Sensorineural hearing loss
    B. Retrocochlear hearing loss
    C. Most comfortable loudness level
    D. Conductive hearing loss
    B. Retrocochlear hearing loss
    (this multiple choice question has been scrambled)
  24. 24. An air tight seal:
    A. Ipsilateral
    B. Immittance
    C. Monomeric
    D. Hermetic
    D. Hermetic
    (this multiple choice question has been scrambled)
  25. 25. Tympanometry measures:
    A. ipsilateral acoustic reflex
    B. mobility of the middle ear system
    C. contralateral acoustic reflex
    D. reflex decay
    B. mobility of the middle ear system
    (this multiple choice question has been scrambled)
  26. 26. A normal middle ear system:

    a. Type A
    b. Type B
    c. Type C
    d. Type Ad
    e. Type As
    Type A
  27. Negative pressure in the middle ear space

    a. Type A
    b. Type B
    c. Type C
    d. Type Ad
    e. Type As
    Type C
  28. No area of peak pressure is observed, due to an overly stiff middle ear system

    a. Type A
    b. Type B
    c. Type C
    d. Type Ad
    e. Type As
    Type B
  29. 29. The area of peak pressure is normal, but the system shows an abnormally high compliance
    a. Type A
    b. Type B
    c. Type C
    d. Type Ad
    e. Type As
    Type Ad
  30. 30. The area of peak pressure is normal, but the system shows an abnormally low compliance
    a. Type A
    b. Type B
    c. Type C
    d. Type Ad
    e. Type As
    Type As
  31. Associated with eustachian tube dysfunction
    a. Type A
    b. Type B
    c. Type C
    d. Type Ad
    e. Type As
    Type C
  32. 32. A type B tympanogram with an abnormally large estimated ear canal volume would indicate:
    A. ossicular disarticulation
    B. a conductive pathology in the middle ear space
    C. impacted cerumen or foreign object in the ear canal
    D. an eardrum perforation or P.E. tube
    D. an eardrum perforation or P.E. tube
    (this multiple choice question has been scrambled)
  33. 33. In tympanometry, an abnormally large gradient (width) is associated with
    A. otitis media
    B. ossicular disarticulation
    C. retrocochlear pathology
    D. otosclerosis
    A. otitis media
    (this multiple choice question has been scrambled)
  34. 34. When testing the right ipsilateral acoustic reflex:
    A. the probe tone is presented to the right ear, and the loud sound is presented to the left ear
    B. the probe tone is measured in the left ear, and the loud sound is presented to the right ear
    C. the probe and stimulus tones are both presented to the left ear
    D. the probe and stimulus tones are both presented to the right ear
    D. the probe and stimulus tones are both presented to the right ear
    (this multiple choice question has been scrambled)
  35. 35. When testing the right contralateral acoustic reflex:
    A. the probe and stimulus tones are both presented to the right ear
    B. the probe and stimulus tones are both presented to the left ear
    C. the probe tone is measured in the left ear, and the loud sound is presented to the right ear
    D. the probe tone is measured in the right ear, and the loud sound is presented to the left ear
    C. the probe tone is measured in the left ear, and the loud sound is presented to the right ear
    (this multiple choice question has been scrambled)
  36. 36. If there is a conductive pathology in the right ear and the left ear is normal:
    A. Right ipsilateral and left contralateral reflexes will be absent
    B. Only the right ipsilateral reflex will be absent
    C. Both ipsilateral reflexes will be absent
    D. Both contralateral reflexes will be absent
    A. Right ipsilateral and left contralateral reflexes will be absent

    A reflex will be absent if the probe is in an ear that has a conductive pathology, because the disorder prevents us from measuring the contraction of the stapedius muscle.The probe will be in the right ear in the right ipsilateral and left contralateral conditions.
    (this multiple choice question has been scrambled)
  37. 37. In acoustic reflex decay testing, a loud sound is played for 10 seconds. If a reflex in the right ear “decays” within those 10 seconds:
    A. The cochlear hair cells may be damaged
    B. The right ipsilateral acoustic reflex threshold will be absent
    C. A retrocochlear pathology may be present
    D. A conductive pathology may be present
    C. A retrocochlear pathology may be present
    (this multiple choice question has been scrambled)
  38. 38. Occurs when the sound presented to the test ear is heard by the non-test ear
    A. cross hearing
    B. interaural attenuation
    C. masking
    d. none of the above
    A. cross hearing
    (this multiple choice question has been scrambled)
  39. 39. What type of noise is used to mask pure tone stimuli?
    A. white noise
    B. wide band noise
    C. narrow band noise
    D. speech-shaped noise
    C. narrow band noise
    (this multiple choice question has been scrambled)
  40. 40. Supra-Aural Headphones (TDH-39)
    a. 0 dB
    b. 20 dB
    c. 40 dB
    d. 60 dB
    40 dB
  41. 41. Insert Earphones (ER-3A)
    a. 0 dB
    b. 20 dB
    c. 40 dB
    d. 60 dB
    60 dB
  42. 42. Bone Conduction
    a. 0 dB
    b. 20 dB
    c. 40 dB
    d. 60 dB
    0 dB

  43. 43. The masked bone conduction threshold at 4k Hz is:
    a. 60 dB
    b. 80 dB
    c. 100 dB
    d. No Response

    44. The above audiogram most likely represents:
    a. Normal hearing
    b. Conductive hearing loss
    c. Sensorineural hearing loss
    d. Mixed hearing loss.
    43. d. No Response


    44. c. Sensorineural hearing loss

    • • We discussed this one twice in class.
    • • This set of results is common in patients with a profound sensorineural loss
    • • Due to equipments limitations, bone conduction testing cannot be performed at very high intensities
    • • The arrows beside the symbols mean that even though a loud sound was presented at that level, there was no response.
    • o This does not mean that there is an air-bone gap, it just means that the patient’s threshold is louder than we could deliver the bone conduction stimulus
    • o While it is possible that there is an air-bone gap, this type of audiogram is most commonly found in individuals with a profound sensorineural hearing loss

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