Goshorn Industrial Final questions
well answered graded A+
What does CAOHC stand for? - correct answer ✔✔ Council for Accreditation of Occupational
Hearing Conservation
True or False: The OHC can be responsible for the diagnosis of hearing problems. - correct
answer ✔✔ False
Name at least 6 activities the OHC is trained to carry out. - correct answer ✔✔ Take noise
measurements
perform hearing screenings
refer to audiologists/physicians
Collect medical history
Perform a visual ear inspection
Maintain the Audiometer
True or False: Noise induced hearing loss can be reversed by medical treatment. - correct
answer ✔✔ False
TTS stands for _______ and the OHC needs to catch these hearing losses before they become
_______. - correct answer ✔✔ Temporary Threshold Shift
Permanent Threshold Shifts
Name at least 3 agents besides noise that are toxic to the ear, especially when combined with
noise exposure. - correct answer ✔✔ Heavy metals (lead, trimethyltin)
Organic solvents (toulene, xylene)
, Asphyxiants (CO)
What are 3 of the most useful abilities of human hearing? - correct answer ✔✔ Communication,
perception of warnings, diagnosing the sound of a machine malfunction
Inside the middle ear are situated three small bones called the ossicles, whose names are
_______, _______, and _______. The function of the ossicular chain is to _______. - correct
answer ✔✔ Malleus, Incus, Stapes
Conduct sound vibrations from the tympanic membrane to the middle ear.
In the inner ear, the snail-shaped end organ for hearing is the _______. - correct answer ✔✔
Cochlea
Noise exposed people tend to lose hearing first for the _________ tones. - correct answer ✔✔
High frequency
Under what conditions will the OHC need to diagnose hearing disorders? - correct answer ✔✔ If
they are a properly trained and certified audiologist or physician.
Give 3 examples of outer or middle ear conditions that could cause a conductive hearing loss. -
correct answer ✔✔ Otitis externa, otitis media, impacted cerumen
Under what conditions should a worker refrain from wearing earplugs? - correct answer ✔✔ If
they show symptoms of external otitis
Name at least 5 possible causes of sensorineural hearing loss other than noise. - correct answer
✔✔ Presbycusis, ototoxic drugs, genetics, prenatal infection, acoustic neuroma
well answered graded A+
What does CAOHC stand for? - correct answer ✔✔ Council for Accreditation of Occupational
Hearing Conservation
True or False: The OHC can be responsible for the diagnosis of hearing problems. - correct
answer ✔✔ False
Name at least 6 activities the OHC is trained to carry out. - correct answer ✔✔ Take noise
measurements
perform hearing screenings
refer to audiologists/physicians
Collect medical history
Perform a visual ear inspection
Maintain the Audiometer
True or False: Noise induced hearing loss can be reversed by medical treatment. - correct
answer ✔✔ False
TTS stands for _______ and the OHC needs to catch these hearing losses before they become
_______. - correct answer ✔✔ Temporary Threshold Shift
Permanent Threshold Shifts
Name at least 3 agents besides noise that are toxic to the ear, especially when combined with
noise exposure. - correct answer ✔✔ Heavy metals (lead, trimethyltin)
Organic solvents (toulene, xylene)
, Asphyxiants (CO)
What are 3 of the most useful abilities of human hearing? - correct answer ✔✔ Communication,
perception of warnings, diagnosing the sound of a machine malfunction
Inside the middle ear are situated three small bones called the ossicles, whose names are
_______, _______, and _______. The function of the ossicular chain is to _______. - correct
answer ✔✔ Malleus, Incus, Stapes
Conduct sound vibrations from the tympanic membrane to the middle ear.
In the inner ear, the snail-shaped end organ for hearing is the _______. - correct answer ✔✔
Cochlea
Noise exposed people tend to lose hearing first for the _________ tones. - correct answer ✔✔
High frequency
Under what conditions will the OHC need to diagnose hearing disorders? - correct answer ✔✔ If
they are a properly trained and certified audiologist or physician.
Give 3 examples of outer or middle ear conditions that could cause a conductive hearing loss. -
correct answer ✔✔ Otitis externa, otitis media, impacted cerumen
Under what conditions should a worker refrain from wearing earplugs? - correct answer ✔✔ If
they show symptoms of external otitis
Name at least 5 possible causes of sensorineural hearing loss other than noise. - correct answer
✔✔ Presbycusis, ototoxic drugs, genetics, prenatal infection, acoustic neuroma
