Unit 6: hearing loss and reading audiograms

Question 1

audiogram

Answer 1

graphic display of an individuals threshold

Question 2

threshold

Answer 2

softest sound a person can hear 50% of the time

Question 3

dynamic range for frequency

Answer 3

20-20,000

Question 4

audiogram frequency range

Answer 4

250-8000

Question 5

normal hearing

Answer 5

0-20 db

Question 6

mild hearing

Answer 6

20-40 db

Question 7

moderate hearing

Answer 7

40-60 db

Question 8

moderately severe hearing

Answer 8

60-70 db

Question 9

severe hearing

Answer 9

70-90 db

Question 10

profound hearing

Answer 10

90+ db

Question 11

Child normal hearing

Answer 11

0-15 db

Question 12

child slight hearing

Answer 12

15-20 db

Question 13

air conduction

Answer 13

testing via headphones/inserts, follows through the entire path, tells us the degree of hearing loss

Question 14

bone conduction

Answer 14

testing via bone oscillator, follows through from the cochlea up to the brain
tells us type of hearing loss

Question 15

degree

Answer 15

how much hearing loss is present

Question 16

air bone gap

Answer 16

difference between air and bone conduction thresholds
present if 15 db or more

Question 17

masking

Answer 17

introduction of noise to the non test ear to ensure that responses are coming from the test ear

Question 18

laterality

Answer 18

unilateral if only one ear has hearing loss

Question 19

audiologists test hearing by air conduction using

Answer 19

inserts or supra aural headphones

Question 20

audiologists test hearing by bone conduction using a

Answer 20

bone oscillator

Question 21

sensorineural

Answer 21

ac and bc similar
inner/viii nerve

Question 22

conductive

Answer 22

ac abnormal, bc normal
air bone gap
outer/middle

Question 23

mixed

Answer 23

bc abnormal, ac abnormal and worse