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HIS- Hearing Instrument Specialist > Speech Audiometry > Flashcards

Speech Audiometry Flashcards

1
Q

When spondiac words or Spondees can be repeated 50% of the time

A

SRT- Speech Reception Threshold

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2
Q

The level about 8-10dB below SRT’s where you are aware someone is talking but without enough frequencies represented to understand the words.

A

SDT Speech Detection Threshold or SAT Speech Awareness Thresholds

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3
Q

At about 130dB SPL for normal ears

A

UCL- Uncomfortable Loudness Level

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4
Q

The range of usable hearing between SRT and UCL is

A

Dynamic Range

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5
Q

How to calculate the Dynamic Range

A

Subtracting SRT from UCL

Ex. 130dB-20dB=110dB Dynamic Range for normal ears

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6
Q

A patient with a conductive loss has a blockage or occlusion that prevents the sound from reaching the inner ear and the threshold of hearing______in the lower frequency

A

Elevates, greater

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7
Q

Speech Audiometry provides five types of information

A
  1. Speech Reception Threshold (SRT)
  2. Most Comfortable Level (MCL)
  3. Uncomfortable Loudness Level (UCL)
  4. Dynamic Range
  5. Speech Discrimination Score
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8
Q

Normal Range for SRT is

A

0-20dB HL

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9
Q

How do you find the Sensation Level

A

SL=MCL-SRT

SL times 2 should estimate Dynamic Range
SL can be a predicting factor in Discrimination Scores
SL verifies the type of Audio (conductive losses have a greater SL than SNL)

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10
Q

SRT, MCL and UCL all convert to SPL by adding ___

A

20dB

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11
Q

SRT verifies what?

A

The patient’s PTA give or take 5dB

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12
Q

Results when a louder sound occurs immediately after a softer sound causing the softer sound to be inaudible even though it occurred first

A

Backward Masking

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13
Q

Occurs when one sound follows another closely in time and the first sound reduces the sensitivity of recently stimulated cells.

A

Forward Masking

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14
Q

When testing for SRT’s the threshold should start…

A

First determine the PTA and start thresholds and start SRT testing at 40dB above PTA…if thresholds are unknown start at 50dB

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15
Q

When Testing WR the threshold should begin at___

A

First determine the PTA and start thresholds and start WR testing at 40dB above PTA…if thresholds are unknown start at 50dB

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16
Q

Although pure tones sound artificial to us, they have the advantage of

A

Measuring a specific frequency without involvement of other frequencies

17
Q

Although pure tones sound artificial to us, they have the advantage of

A

Measuring a specific frequency without involvement of other frequencies

18
Q

Speech Reception Threshold

A

Is a level about SDT by about 8-10dB

19
Q

Dynamic Range is the usable range of hearing between

A

SRT and UCL

20
Q

The most comfortable level is

A

About 65dB SPL for normal ears

About 45dB HL for normal ears

21
Q

The range between threshold and MCL

A

Differs at each frequency

22
Q

When Pt with a conductive loss

A

The same dynamic range as normal ears

23
Q

When Pt’s have a sensorineural loss, MCL

A

Retains a relationship with the lower boundary

24
Q

Recruitment is

A

Common in patients with cochlear losses

25
Q

When a pt has normal pure tone thresholds of 0dB HL across frequencies, it is difficult to accurately measure

A

SAT

26
Q

When a pt has a large conductive component, it is difficult to accurately measure:

A

UCL

27
Q

Speech discrimination tests

A

Approximately a sample of speech sounds in an ordinary conversation

28
Q

The pt has pure tone air conduction thresholds of 40dB HL at each frequency, If the pt has a conductive hearing loss his MCL would be aprox

A

80dB HL or above

29
Q

Discriminating complex sounds depend on

A

Timbre

30
Q

In a complex sound, the fundamental frequency is the:

A

Loudest frequency

31
Q

We recognize the different vowel sounds because of variations in

A

Timbre

32
Q

A formant is:

A

A concentration of energy around certain frequencies

33
Q

The upward spread of masking occurs when

A

A Low frequency sound masks out a high frequency sound

34
Q

Masking is required for discrimination tests when

A

Masking was used for air conduction tests

35
Q

Binaural testing

A

Helps decide which ear to fit

HIS- Hearing Instrument Specialist (20 decks)

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