Sensorineural Hearing Loss and Tinnitus.

Question 1

Define the criteria for having a sensorineural hearing impairment.

Answer 1

Mean pure-tone threshold (0.5, 1, 2 & 4 kHz) greater than or equal to 25 dBHL with no conductive element (air-bone gap is less than or equal to 10dB).

Question 2

Define the criteria for having a sensorineural hearing impairment.

Answer 2

Mean pure-tone threshold (0.5, 1, 2 & 4 kHz) greater than or equal to 25 dBHL with no conductive element (air-bone gap is less than or equal to 10dB).

Question 3

What are the causes of Sensori-neural Hearing Impairment?

Answer 3

• In the majority of individuals, the aetiology can’t be identified
• Noise
• Drugs
• Meniere’s Disease
• Acoustic Neuroma (quire rare)

Question 4

What sort of things can noise induced hearing loss cause?

Answer 4

• Damage to hair cells
• Sensorineural Hearing Loss
• High tone dip
• tinnitus

Question 5

Name some common types of noise that can cause noise induced hearing loss.

Answer 5

Industrial Noise
Impulse Noise (gunfire)
Social

Question 6

A ______ does of industrial noise can lead to noise induced hearing loss.

Answer 6

Cumulative.

Question 7

Individuals have varying _____________ to noise induced hearing loss (NIHL).

Answer 7

susceptible.

Question 8

Give 2 examples of impulse noise.

Answer 8

Gunfire

Explosions

Question 9

Impulse noise depends on what 2 factors (when it comes to NIHL)?

Answer 9

Intensity of noise

Frequency of occurence

Question 10

Name an example of social noise.

Answer 10

Nightclubs.

Question 11

What kind of “social” profession always wears ear protection?

Answer 11

professional musicians.

Question 12

What type of noise is not usually a problem.

Answer 12

Social Noise.

Question 13

What are the causes of Sensori-neural Hearing Impairment?

Answer 13

• In the majority of individuals, the aetiology can’t be identified
• Noise
• Drugs
• Meniere’s Disease
• Acoustic Neuroma (quire rare)

Question 14

What sort of things can noise induced hearing loss cause?

Answer 14

• Damage to hair cells
• Sensorineural Hearing Loss
• High tone dip
• tinnitus

Question 15

Name some common types of noise that can cause noise induced hearing loss.

Answer 15

Industrial Noise
Impulse Noise (gunfire)
Social

Question 16

A ______ does of industrial noise can lead to noise induced hearing loss.

Answer 16

Cumulative.

Question 17

Individuals have varying _____________ to noise induced hearing loss (NIHL).

Answer 17

susceptible.

Question 18

Give 2 examples of impulse noise.

Answer 18

Gunfire

Explosions

Question 19

Name some drugs that cause ototoxicity.

Answer 19

• Aminoglycosides (commonly used in cepsis)
• Diuretics
• Antimitotics (drugs used for cancer)
• Beta-blockers
• salicylates (aspirin- temporary tho)

Question 20

Name an example of social noise.

Answer 20

Nightclubs.

Question 21

What kind of “social” profession always wears ear protection?

Answer 21

professional musicians.

Question 22

What type of noise is not usually a problem.

Answer 22

Social Noise.

Question 23

What is temporary threshold shift?

Answer 23

Temporary hearing loss, usually associated with tinnitus.

Question 24

In temporary threshold shift, how does duration vary?

Answer 24

It varies with the severity of exposure.

Question 25

How can we prevent noise induced hearing loss?

Answer 25

``` Reduce noise levels Ear protection (plugs and muffs) ```

Question 26

_____ reduce noise levels by 15-21 dB.

Answer 26

Plugs.

Question 27

_____ reduce noise levels by 24dB.

Answer 27

Muffs.

Question 28

How can noise be reduced by 40dB?

Answer 28

By wearing ear plugs and muffs.

Question 29

What is hearing loss caused by drugs called?

Answer 29

Ototoxicity.

Question 30

Name some drugs that cause ototoxicity.

Answer 30

- Aminoglycosides (commonly used in cepsis) - Diuretics - Antimitotics (drugs used for cancer) - Beta-blockers - salicylates (aspirin- temporary tho)

Question 31

What are the symptoms of Meniere's Disease?

Answer 31

- Episodic vertigo (dizzy) - Fluctuating Hearing Loss - Fluctuating tinnitus (usually in one ear) - Fullness in the ear (pressure in 1 ear)

Question 32

What is meant by non-organic hearing loss?

Answer 32

People pretend or exaggerate that they have a hearing loss, normally to get compensation.

Question 33

How can we tell if someone has non-organic hearing loss?

Answer 33

- suspicious behaviour - inconsistent threshold - no false positives - shape of audiogram- typically flat

Question 34

What is the fancy word for ears ringing?

Answer 34

Tinnitus.

Question 35

Define Tinnitus

Answer 35

A sensation of sound in one or both ears or in the head for which no physical cause can be identified.

Question 36

What noises are commonly heard when a person experiences tinnitus?

Answer 36

Buzzing, Hissing or ringing.

Question 37

_______ ________tinnitus exists in 15-30% of the population.

Answer 37

Short Duration.

Question 38

________ or _________ tinnitus exist in 0.5-1% of the population.

Answer 38

Chronic, Severe.