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CAOHC Certification Questions & Answers 2024 Latest Update $12.99
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CAOHC Certification Questions & Answers 2024 Latest Update

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What does CAOHC stand for? - ANSWER Council for Accreditation in Occupational Hearing Conservation Who is the certification body for? - ANSWER Occupational Hearing Conservationist (OHCs) Course Directors (CDs) Professional Supervisors (PSs) What is CAOHCs mission? - ANSWER To promote h...

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  • December 13, 2024
  • 18
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • caohc
  • CAOHC
  • CAOHC
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CAOHC Certification Questions &
Answers 2024 Latest Update
What does CAOHC stand for? - ANSWER Council for Accreditation in Occupational
Hearing Conservation

Who is the certification body for? - ANSWER Occupational Hearing Conservationist
(OHCs)

Course Directors (CDs)

Professional Supervisors (PSs)

What is CAOHCs mission? - ANSWER To promote hearing loss prevention by
enhancing the quality of occupational hearing loss prevention practices, with a focus on:

Providing OHCs: resources and guidance to facilitate the practice of hearing loss
prevention through standardized training and credentialing

Providing CDs: training resources, curriculum oversight, and professional support to
assist in ensuring the competence of OHC's

What does CAOHC do? - ANSWER Promote BEST PRACTICES in occupational
hearing conservation

What is a CAOHC certified student? - ANSWER Certified occupational hearing
conservationist (COHC)

How long does a COHC certification last? - ANSWER 5 years

What are the two effects of noise? - ANSWER Auditory

Non-auditory

Defined auditory - ANSWER Direct effects to the ear

What are some examples of auditory effects? - ANSWER 1. Noise induced hearing loss
(NIHL)

2. Tinnitus (ringing in the ear)

3. Hyperacusis (high sensitivity to noise; lower tolerance for loud sounds)

4. Communication interference

,Define non-auditory - ANSWER Other physiological and psychological effects

What are some examples of non-auditory effects? - ANSWER 1. Hypertension

2. Cognitive decline

3. Stress

4. Isolation, Social withdrawal, frustration

5. Sleep disturbances

6. Degraded work performance

What are some early signs of noise induced hearing loss? - ANSWER 1. Difficulty
understanding conversations (particularly in background noise)

2. Ringing or buzzing in the ears (tinnitus)

What are some characteristics of noise induced hearing loss? - ANSWER 1. Usually
bilateral, always sensorineural

2. Typically affects high frequencies first; audiometric "notch" at 4000Hz

3. Primary determiners of damage are duration and intensity of sound

4. Temporary hearing threshold shifts (TTS) become permanent threshold shifts (PTS)

Name two sources of hazardous noise - ANSWER 1. Occupational noise exposure

2. Non-occupational noise exposure

What is the most common occupational illness and second most self reported
occupational illness for American workers? - ANSWER Noise induced hearing loss
(NIHL)

What occupation has the highest percentage of noise induced hearing loss? - ANSWER
Manufacturing

Approximately how many people are exposed to hazardous noise in the workplace? -
ANSWER 30 million people

What occupation has the highest prevalence of exposure to noise? - ANSWER Mining

What are the two parts of the outer ear? - ANSWER 1. Auricle (pinna)

, 2. External auditory meatus (Ear canal)

What are the names of the three bones in the middle ear? - ANSWER 1. Malleus
(hammer)

2. Incus (anvil)

3. Stapes (stirrup)

What are the smallest bones in the human body? - ANSWER Ossicles

What are the two primary structures in the inner ear? - ANSWER 1. Cochlea (hearing)

2. Vestibular System (balance)

What is the vestibular system attached to? - ANSWER The ear

What are the three types of hearing loss? - ANSWER 1. Conductive

2. Sensorineural

3. Mixed

Where does conductive hearing loss occur? - ANSWER The outer or middle ear

Is conductive hearing loss treatable? - ANSWER Yes

Where does sensorineural hearing loss occur? - ANSWER The inner ear

Is sensorineural hearing loss treatable? - ANSWER No

What is mixed hearing loss? - ANSWER A combination of conductive and sensorineural
hearing loss

What is an example of an outer ear problem? - ANSWER 1. Cerumen impaction
(excessive earwax)

2. Otitis Externa (outer ear infection)

(Conductive hearing loss)

What is an example of a middle ear problem? - ANSWER 1. Otitis Media (middle ear
infection)

2. Perforated tympanic membrane

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