Sensorineural Hearing Loss and Tinnitus. Flashcards

1
Q

Define the criteria for having a sensorineural hearing impairment.

A

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).

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2
Q

Define the criteria for having a sensorineural hearing impairment.

A

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).

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3
Q

What are the causes of Sensori-neural Hearing Impairment?

A
  • In the majority of individuals, the aetiology can’t be identified
  • Noise
  • Drugs
  • Meniere’s Disease
  • Acoustic Neuroma (quire rare)
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4
Q

What sort of things can noise induced hearing loss cause?

A
  • Damage to hair cells
  • Sensorineural Hearing Loss
  • High tone dip
  • tinnitus
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5
Q

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

A

Industrial Noise
Impulse Noise (gunfire)
Social

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6
Q

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

A

Cumulative.

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7
Q

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

A

susceptible.

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8
Q

Give 2 examples of impulse noise.

A

Gunfire

Explosions

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9
Q

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

A

Intensity of noise

Frequency of occurence

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10
Q

Name an example of social noise.

A

Nightclubs.

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11
Q

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

A

professional musicians.

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12
Q

What type of noise is not usually a problem.

A

Social Noise.

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13
Q

What are the causes of Sensori-neural Hearing Impairment?

A
  • In the majority of individuals, the aetiology can’t be identified
  • Noise
  • Drugs
  • Meniere’s Disease
  • Acoustic Neuroma (quire rare)
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14
Q

What sort of things can noise induced hearing loss cause?

A
  • Damage to hair cells
  • Sensorineural Hearing Loss
  • High tone dip
  • tinnitus
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15
Q

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

A

Industrial Noise
Impulse Noise (gunfire)
Social

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16
Q

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

A

Cumulative.

17
Q

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

A

susceptible.

18
Q

Give 2 examples of impulse noise.

A

Gunfire

Explosions

19
Q

Name some drugs that cause ototoxicity.

A
  • Aminoglycosides (commonly used in cepsis)
  • Diuretics
  • Antimitotics (drugs used for cancer)
  • Beta-blockers
  • salicylates (aspirin- temporary tho)
20
Q

Name an example of social noise.

A

Nightclubs.

21
Q

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

A

professional musicians.

22
Q

What type of noise is not usually a problem.

A

Social Noise.

23
Q

What is temporary threshold shift?

A

Temporary hearing loss, usually associated with tinnitus.

24
Q

In temporary threshold shift, how does duration vary?

A

It varies with the severity of exposure.

25
Q

How can we prevent noise induced hearing loss?

A
Reduce noise levels
Ear protection (plugs and muffs)
26
Q

_____ reduce noise levels by 15-21 dB.

A

Plugs.

27
Q

_____ reduce noise levels by 24dB.

A

Muffs.

28
Q

How can noise be reduced by 40dB?

A

By wearing ear plugs and muffs.

29
Q

What is hearing loss caused by drugs called?

A

Ototoxicity.

30
Q

Name some drugs that cause ototoxicity.

A
  • Aminoglycosides (commonly used in cepsis)
  • Diuretics
  • Antimitotics (drugs used for cancer)
  • Beta-blockers
  • salicylates (aspirin- temporary tho)
31
Q

What are the symptoms of Meniere’s Disease?

A
  • Episodic vertigo (dizzy)
  • Fluctuating Hearing Loss
  • Fluctuating tinnitus (usually in one ear)
  • Fullness in the ear (pressure in 1 ear)
32
Q

What is meant by non-organic hearing loss?

A

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

33
Q

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

A
  • suspicious behaviour
  • inconsistent threshold
  • no false positives
  • shape of audiogram- typically flat
34
Q

What is the fancy word for ears ringing?

A

Tinnitus.

35
Q

Define Tinnitus

A

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

36
Q

What noises are commonly heard when a person experiences tinnitus?

A

Buzzing, Hissing or ringing.

37
Q

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

A

Short Duration.

38
Q

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

A

Chronic, Severe.