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COHN Clinician exam with complete solutions 2024_2025
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COHN Clinician exam with complete solutions 2024_2025
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COHN Clinician exam with completesolutions 2024/2025
One of the problems with the old method of using cotton earplugs was the
cerumen. Cerumen is also detrimental to some of the modern earplugs. What is
cerumen?
A. Ear canal hair cells
B. Earwax.
C. Fluids secreted by the cochlea
D. Secretions of the hypothalamus - ANSWER-B
The cochlea is essentially a coiled tube. At one end of the tube is the oval
window. The function of the oval window is to:
A. receive the vibrations from the eardrum.
B. shield the semicircular canals from interference.
C. protect the auditory canal.
D. receive neural input from the auditory nerve. - ANSWER-A
The correct term for hearing loss induced by occupational exposure to noise is:
A. presbycusis.
B. sociocusis.
C. sensorineural loss.
D. conductive loss. - ANSWER-C
The main part of the body involved in maintaining the body's heat balance is the:
A. skin.
B. heart.
C. lungs.
D. hair. - ANSWER-A
The middle ear contains a group of bones called the:
A. stapes.
B. ossicles.
,C. incus.
D. eustachian tubes. - ANSWER-B
Which of the following parts of the ear contain the hair-like cells that detect
sound?
A. Semicircular canals
B. Cochlea
C. Stapes
D. Anvil - ANSWER-B
The risk of developing active pulmonary tuberculosis is substantially increased
by exposure to:
A. free crystalline silica dust.
B. alpha radiation.
C. arsenic.
D. asbestos. - ANSWER-A
Which of the following occupations is least likely to experience problems with
occupational dermatoses?
A. Leather Tanning
B. Lumbering
C. Asbestos processing
D. Farm labor - ANSWER-C
Which of the following is likely to increase susceptibility to skin disorders?
A. Dry skin
B. Oily skin
C. Fair skin
D. All of the above - ANSWER-D
Which of the following is most appropriate in the routine examination of a
machinist?
A. Exercise stress test
B. Serum protease inhibitor level
C. Allergy history assessment
D. Audiometric testing - ANSWER-D
The three layers of skin are:
A. Hair follicles, capillary, muscle
B. Epidermis, dermis, subcutaneous tissue
C. Epidermis, capillary, dermis
, D. Cuticle, blood vessel, muscle - ANSWER-B
A worker's hand has been exposed to liquid nitrogen. What is the correct first
aid?
A. Immere hand in ice water
B. Immerse hand in warm water
C, Immerse hand in hot water
D. Pack hand in ice - ANSWER-B
A patient with headaches, nausea, vomiting, fatigue, jaundice and oliguria may
have an occupational disease caused by:
A. lead.
B, mercury.
C. carbon tetrachloride
D. hydrogen sulfide. - ANSWER-C
After administering an injectionm the nurse suffers a minor needlestick injury.
(S)he should immediately:
A. call 911
B. notify the employer.
C. take two aspirin.
D. draw blood from the source individual. - ANSWER-B
An employee sustains a head injury after a fall from a ladder. Which of the
following in an indicator of increasing intercranial pressure?
A. Elevated blood pressure and increased pulse
B. Elevated blood pressure and decreased pulse
C. Decreased blood pressure and decreased pulse
D. Decreased blood pressure and increased pulse - ANSWER-B
Your patient is to receive a maintenance dose of digoxin 0.08 mg. The vial
contains 0.05 mg in 1 ml of solution. You administer:
A. 0.08 ml
B. 0.40 ml
C. 0.66 ml
D. 1.60 ml - ANSWER-D
Which of the following is associated with potassium deficiency?
A. Fatigue
B. Thirst
C. Leg muscle weakness
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