Diagnostics Review

Question 1

Dimensions of Sound: Frequency

Answer 1

Frequency
•Pitch: perceptual correlate of frequency
•Hertz (Hz): cycles per sec
•Range of Human Hearing
•	20 Hz to 20,000 Hz
•	125 Hz to 8000 Hz

Question 2

Dimensions of Sound: Intensity

Answer 2

• Perceptual correlate? loudness
• Unit of measurement? Decibel
• Range of Human Hearing
• dBHL: 0 dB HL to 110 dB HL

Question 3

dBSPL vs. dBHL

Answer 3

SPL (physical presence of sound )

HL (average human ability to hear sound)

Question 4

dB Logarithmic scale

Answer 4

Not Linear; for every 20 dB increase the sound pressure intensity increases 10 times.

small increases in dB but big increase in sound pressure intensity

Question 5

Test order

Answer 5

physiological testing FIRST & Pure tone testing AFTER

Case history→ Otoscopy (look in ears) first → tympanometry (pressure in the middle ear space/ size of canal/ compliance or mobility of eardrum) → acoustic reflexes (reflex to loud sounds/health of auditory nerve/if ossicles are working)// or OAEs

Question 6

The Audiogram

Answer 6

1. Case History/Otoscopy
2. Pure Tone Air Conduction
3. Pure Tone Bone Conduction
4. Speech Audiometry
5. Immittance Testing
6. Special Testing

Question 7

Audiogram Dimensions: Intensity

Answer 7

-10 dB HL to 120 dB HL

Question 8

Audiogram Dimensions: Frequency

Answer 8

250 Hz to 8000 Hz
Mid-Octaves (750, 1500, 3000, 6000)
125 Hz & 12,000 Hz

Question 9

Degree of Loss

Answer 9

Slight, mild, moderate, mod-sev, severe, profound

Question 10

Configuration of Loss

Answer 10

Flat, sloping, steeply sloping, precipitous, rising

Question 11

mild to mod sev sloping bilateral

– How might this affect speech developmen

Answer 11

misarticulation, delayed segmental development but normal suprasegmental skills

should develop speech spontaneously

Question 12

Type of Loss

Answer 12

SNHL, conductive, mixed, Central, Functional

Question 13

Bone conduction testing is testing what?

Answer 13

BC is testing sensorineural sensitivity

Question 14

The Air-Bone Gap
•The Whole System (AC threshold): 40 dB
•The Sensorineural Component: 0 dB

• What is the conductive component?
• What type of hearing loss?

Answer 14

Conductive: 40
Type: Conductive

??

Question 15

The Air Bone Gap
•The Whole System (AC threshold): 60 dB
•The Sensorineural Component: 35 dB

• What is the Conductive Component?
• What is the type of hearing loss?

Answer 15

Conductive: 25
Type: mixed

??

Question 16

Auditory Processing: How do you test this?

Answer 16

Speech Recognition, Intelligibility