CAOHC COMPLETE STUDY SHEET
QUESTIONS AND REVIEW SOLUTION PACK
●● 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)
QUESTIONS AND REVIEW SOLUTION PACK
●● 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)
