Defining Hearing Loss

Question 1

What are the three types of hearing loss?

Answer 1

1. Conductive Hearing Loss
2. Sensorineural Hearing Loss
3. Mixed Loss of Hearing

Question 2

Type of hearing loss if: signal transmission through air conduction is impeded and signal transmission through bone conduction is impeded, but less than air conduction

Answer 2

Mixed Hearing Loss

Question 3

Type of hearing loss if: signal transmission through air conduction is impeded, but bone conduction levels are within the normal range; there is an air-bone gap of at least 10 dB

Answer 3

Conductive Hearing Loss

Question 4

Type of hearing loss if: signal transmission through air and through bone conduction are impeded and there is not air-bone gap

Answer 4

Sensorineural Hearing Loss

Question 5

Can bone-conduction thresholds ever be worse than air-conduction thresholds?

Answer 5

NO - physically impossible

Question 6

Hearing loss in one ear

Answer 6

Unilateral

Question 7

Hearing loss in both ears

Answer 7

Bilateral

Question 8

What frequencies are involved in pure-tone average?

Answer 8

500, 1000, and 2000 Hz

Question 9

How do you find PTA for Degree of Impairment?

Answer 9

Average the thresholds for 500, 1000, and 2000 Hz

Question 10

What are the ranges for degrees of impairment?

Answer 10

-10 to 15 = None
16 to 25 = Slight
26-40 = Mild
41-55 = Moderate
56-70 = Moderately severe
71-90 = Severe
>91 = Profound

Question 11

What is the degree of impairment for a PTA of 56-70?

Answer 11

Moderately severe

Question 12

What is the range of PTA if you have a severe hearing loss?

Answer 12

71-90 dB HL

Question 13

What is the degree of impairment for a PTA of 26-40?

Answer 13

Mild

Question 14

What is the range of PTA if you have no hearing loss?

Answer 14

-10 to 15 dB HL

Question 15

What is the degree of impairment for a PTA of 16 to 25?

Answer 15

Slight

Question 16

T/F You always have to use three frequencies to find PTA.

Answer 16

False - you can do a four frequency average and a two frequency average if necessary

Question 17

What are the four terms for describing the audiogram?

Answer 17

Degree of Impairment
Region of Loss
Configuration
Symmetry

Question 18

Loss frequency loss, Middle frequency loss, and High frequency loss describe the ____________ for the hearing loss.

Answer 18

Region of Loss

Question 19

Symmetrical and Asymmetrical describe the _______ of the hearing loss.

Answer 19

Symmetry
(symmetrical = degree and configuration of hearing loss is the same in both ears; asymmetrical = degree and configuration of hearing loss is different across hears)

Question 20

flat, sloping, rising, and cookie bite describe the ______ of the hearing loss.

Answer 20

Configuration

Question 21

T/F You read an audiogram top to bottom.

Answer 21

False - you read an audiogram left to right