Audiology Exam 2 S.S. flashcards |

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What does SRT stand for?

Speech Recognition Threshold

What does WRS stand for and what is it?

Word Recognition Score and Suprathreshold for hearing and detecting sounds

What is a HHI?

Hearing Handicap Inventory; assesses patients perception of hearing related communication problems

What is the acceptable range to validate the pure tone test or pure tone average?

+/- 5 dB

What is an audiometer?

Instrument used to measure hearing thresholds

What are bone conduction thresholds?

They represent sensorineural sensitivity

What is the Word Recognition Score Unit?

Percentage correct

What is the SRT unit?


What constitutes a slight loss?

Difficult with faint speech

What constitutes a normal hearing range?

No significant difficulty with faint speech

What constitutes a sensorineural loss?

Dysfunction of inner ear/auditory portion of nervous system

What does this symbol mean? O

Air conduction in the right ear

What does this symbol mean? X

Air conduction in the left ear

What does this symbol mean? ]

Bone conduction in the left ear

What does this symbol mean? [

Bone conduction in the right ear

What is a conductive loss?

Dysfunction of outer/middle ear

What is a chief complaint?

Primary reason for patient's visit to audiologist

What is a profound loss?

Can't understand even amplified speech

What level do you present the sound to get the maximum WRS? (Flat hearing loss)

40 dB above the SRT or 40 dB SL

What is spondee?

2 syllable word, equal emphasis on each syllable, used for SRT

What is normal hearing for adults?

-10-25 dB HL

What is severe loss?

Understand only amplified sounds

What is moderately-severe loss?

Frequent difficulties with loud speech

What is low hearing threshold?

Reflects good hearing sensitivity

What is a Speech Recognition Threshold?

Lowest intensity where speech is understood 50% of time

What frequency range are humans most sensitive to?

1000-4000 Hz

What is a Pure Tone Average (PTA)?

The average of pure tone thresholds at 500, 1000, and 2000 Hz in each ear

What is the pure tone?

Sound with one frequency

What is dB HL?

Unit of sound intensity, y-axis on audiogram

What is SDT?

Speech Detection Threshold; if they can't speak, they have to take a SDT

If SDT is consistent with pure tone testing, what is the acceptable range?

+/- 5 dB of best threshold between 250-4000

If SRT is consistent with pure tone testing, what is the acceptable range?

+/- 10 dB of PTA

What does a high hearing threshold represent?

Reflects poorer hearing sensitivity

What is a rollover?

When word recognition score decreases at higher intensity, sign of retrocohclear pathology

What is sound field testing?

Sound is presented to the patient through loudspeakers (no earphones)

What is an ideal response for SRT?

Repetition of word
Pointing to the picture representing the word

What is a functional assessment?

Type of test that describes the impact of hearing loss on daily function

What is an ideal response for SDT?

Raise hand
Push button

What constitutes a moderate hearing loss?

Frequent difficulties with average level speech

What is a SDT?

Speech Detection Threshold
Lowest dB HL where speech can be detected

What is normal hearing for children?

-10-15 dB HL

What is mild hearing loss?

Difficulty primarily with faint speech

List the hearing loss configuration types.


In mixed loss, is Bone Conduction normal or abnormal?


In mixed loss, are air-bone gaps present?


In sensorineural loss, is bone conduction normal or abnormal?


In sensorineural loss, are there air-bone gaps present?


In sensorineural loss, the air conduction and the bone conduction thresholds are at the (same/different) frequencies.


In conductive loss, is the bone conduction normal or abnormal?


In conductive loss, are air-bone gaps present?


In conductive loss, are air-bone gaps above or below the threshold?


What is bone conduction?

Pathway that bypasses outer and middle ear; determines sensorineural sensitivity

What is air conduction?

Pathway that passes through entire auditory system

What are the 3 categories that are used to describe hearing loss?

Degree (range of thresholds)
Type (conductive, etc.)

What are 3 factors that can influence thresholds?

Proper maintenance and calibration
Test environment
Earphone placement

Maximum ________ limit is lower for bone conduction.


What frequencies are tested with bone conduction?

1000, 2000, 4000, 500, 250

Pure tones are transmitted via a ____ _______ that is placed on the mastoid process or forehead.

Bone vibrator

Bone conduction thresholds represent sensitivity of the _____________ system.


What is the frequency sequence of pure tone testing?

1000, 2000, 3000, 4000, 6000, 8000, retest 1000, 500, and 250

If there is a 20 dB or greater difference between thresholds at adjacent octave intervals in pure tone sequencing, what do you do?

Test the interoctave levels (750, 1500, etc.)

For every response, decrease the intensity level by ____ dB until no response is made.

10 dB

Every times there is no response, increase the intensity level by ___ dB until the person responds again.

5 dB

Air conduction thresholds reflect the integrity of the total _________ auditory mechanism.


What are some ways that Air Conduction can be tested?

Earphones and sound field (loudspeakers)

Speech Audiometry

Technique designed to assess a person's ability to hear and understand speech

Speech Detection Threshold

minimum hearing level at which an individual can detect the presence of speech material

SDT is used when

clients cant perform the SRT

SDT Interpretation

Should be consistent with the best pure tone THRESHOLD + or - 5 db

If SDT was inconsistent

reinstruct or recondition
check equipment
look for discrepancy

Speech Recognition Threshold

minimum hearing level for speech at which an individual can identify simple speech materials approximately 50% of the time

Whats the material used for the SRT?

Spondaic Words

Responses Required for SRT

Identification of words
Pointing to picture or object
Signing or written response

SRT Procedure

Present words at 50 dbHL
Clients respond to every word in the list
Down 10 Up 5 rule
Need 3 correct responses at the same level

SRT Interpretation

Correspond to the pure tone average + or - 10 dB
If SRT is better than PTA then listener may be exaggerating loss
If SRT worse than PTA may reflect poor word recognition ability

SRT is used to give the optimal level of


To test the WRS from the SRT you add what

40 dB HL to a flat loss
80 dB HL to a sloping loss

Suprathreshold testing materials were

Monosyllabic words
-open set
-closed set

Presentational Level

To determine maximum score
-@ least 40 dB SL
-greater SL for sloping loss


Performance Intensity decreases with increasing of speech

Types of hearing loss configuration

Cookie Bite

Mixed Loss

BC is abnormal
Air Bone Gaps Present

Sensorineural Loss

BC is abnormal
No Air Bone Gaps Present
-AC and BC are at same levels

Conductive Loss

BC is normal
Air Bone Gaps Present

Air Bone Gaps

Difference between AC and BC bigger than 10

2 Questions that you should ask..

1. Is BC abnormal?
2. Are there ABGs present?

Type of Loss


Bone Conduction

Pathway that bypasses outer and middle ear
Sends sounds directly to sensorineural system

Air Conduction

Pathway that passes through entire auditory system

Degree of Hearing Loss

Range of thresholds
Best to Worst threshold

Pure Tone Average

Average based on the best threshold at 500, 1000, and 2000

Normal Hearing Loss

-10 to 15

Slight Hearing Loss

16 to 25

Mild Hearing Loss

26 to 40

Moderate Hearing Loss

41 to 55

Moderately Severe Hearing Loss

56 to 70

Severe Hearing Loss

71 to 90

Profound Loss


To describe hearing loss


Biological Calibration


Electronic Calibration


For every response

increase 10 dB

For every no response

5 dB

Low threshold value

Good Hearing Sensitivity

High Threshold Value

Poorer Hearing Sensitivity

Functional Assessment

Describes the impact
Influences recommendations for intervention

Case History for Children

family information
Mother's pregnancy
development of fine and motor skills
childhood diseases
social development and educational history

Case History

Pertinent identifying information
Chief complaint
nature of past and present hearing problems
Medical problems
Prior use of amplification

Basic Audiological Evaluation Components

Case History
Pure Tone Threshold
Conventional Speech Audiometry
Visual/Otoscopic Inspection
Acoustic immitance audiometry

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