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COHN-S EXAM QUESTIONS AND ANSWERS
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COHN-S EXAM QUESTIONS AND ANSWERS
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COHN-S EXAM QUESTIONS AND ANSWERSTolulene - Answers -An isocyanate, is a respiratory sensitizer that can lead to
occupational asthma
Primary concern of a kerosene splash - Answers -Lung irritation
Benzene - Answers -Adversely affects the hematopoietic system. Therefore, individuals
with a history of thrombocytopenia would be at increased risk if exposed to Benzene
SWOT - Answers -Strengths Weaknesses Opportunities Threats; way to asses an
environment
Jaundice is a common symptom of - Answers -Carbon tetrachloride poisoning
OSHA PEL for airborne lead exposure - Answers -50ug/m3
Action level for lead blood levels - Answers -30ug/100g
What unique contribution can the OHN make to workplace safety and health programs?
- Answers -Provide screening to specific exposures
What are other problems that usually accompanies sleep apnea? - Answers -Diabetes
and cardiovascular disease
Doxycycline - Answers -And anti-malarial preventative. Take the drug daily one or two
days before travel and for 28 days after a trip.
The occupational health and safety OSHA's 18001 is described as? - Answers -An
international consensus standard for occupational health and safety management
systems
What are the five classes of drugs tested for DOT purposes? - Answers -Cannabinoids,
cocaine, amphetamines, opiates, PCP
wheal - Answers -hives
Tetanus (lockjaw) - Answers -Clostridium tetani
Results in tectonic or tonic contractions of the muscles
Incubation: 2 days - 2 months (mostly two weeks)
Electrical burns cause? - Answers -Neurologic, vascular and dermal injuries
Electrical burns travel? - Answers -Least to most path of resistance; nerve, blood,
vessel, muscles, skin, tendon, fat, bone
,Chemical burns; acidic/alkali - Answers -Irrigate with copious amounts of water for at
least 20 minutes;
Except for dry lime brush first
Neutralizing is obsolete
Hydrofluoric acid - Answers -Use calcium gluconate gel and square inject after iced
Zephirin irrigation to stop deep burning
heat cramps - Answers -muscle pain and spasm resulting from exposure to heat and
inadequate fluid and salt intake
Treatment: Fluids, electrolytes, cool area
heat exhaustion - Answers -Skin cool, clammy and pale: Circulatory collapse from
sodium depletion and ineffective circulating blood volume, the pulse will be weak and
respiratory rapid and shallow
Heat stroke - Answers -Altered mental state, unconscious, convulsions
Temperature >106°F, skin hot and dry
Dilated peoples, respirations deep to shallow
Pulse rapid strong to week rapid
Treatment for heat stroke and heat exhaustion - Answers -Cool quickly until
temperature is 102 or below
Strip clothes, turn on side, expose more skin
60° water spray, cold water lavage is necessary
Maintain airway
Cold stress - Answers -Excessive loss of heat that results in increased respirations and
nonshivering thermogenesis to maintain core body temperature
Warm core temperature until > 86°
Engineering methods - Answers -Are procedures which may be used to reduce the
stress of a hot environment. Examples include general ventilation, spot cooling, local
exhaust, air conditioning, fan, etc
Administrative work practice - Answers -Controls include acclimatize to heat, work-rest
program, rotation of workers, education and training
Critical incident technique - Answers -Is a method of identifying errors and unsafe
conditions that contribute to both potential and actual injurious accidents within a given
population by means of a stratified random sample of participants and observer
selected from within this population
Acetylene - Answers -Is a colorless gas with a slight garlic like older
, A job safety analysis is a technique to? - Answers -Identify hazards associated with
each step of the job
The analysis technique where individuals are interviewed about accidents, near misses,
and hazardous conditions is known as which of the following? - Answers -Critical
incident technique
Potentiation - Answers -A substance which does not have a toxic effect upon a system
or organ, but when in combination with another chemical, makes the chemical much
more toxic.
Methylene chloride is a mild toxic and his primary metabolite is? - Answers -Carbon
monoxide
A person can lose his or her heat acclimatization in as little as? - Answers -3 days
Performance standard - Answers -A performance standard sets the objective to be
obtain but leaves the compliance details up to the company or organization.
Noise dosimeters under OSHA's Hearing Conservation Standard accumulate noise
exposure beginning at? - Answers -80dB
Chemicals with a "C" notation with their TLVs: - Answers -Have ceiling TLV limits
assigned to them
Viton - Answers -The type of glove material that offers protection against chlorinated
solvents
Quantitative fit testing - Answers -Quantitative fit testing checks for leakage that results
in the employee smelling or sensing the presence of the fit test material.
Employees assigned to the hazardous waste site must receive a minimum
of__________ Hours of offsite training prior to assignment. - Answers -40 hours
The amount of a chemical that kills 50% of the organisms exposed to it in the air is the: -
Answers -LC50
The nature, degree and extent of undesirable effects of a substance is known as? -
Answers -Toxicity
The most powerful epidemiological study design is: - Answers -Prospective cohort
The study of the frequency and distribution of injury and disease in the human
population is: - Answers -Epidemiology
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