COHN-S Exam Questions and Correct
Detailed Answers | Already Graded A+
probabilistic science. - ✔✔Epidemiology
LC50 - ✔✔The amount of a chemical that kills 50% of the organisms
exposed to it in air is the:
The nature, degree and extent of undesirable effects of a substance is
known as the - ✔✔toxicity
the probability that injury will result from the use of a substance - ✔✔hazard
selects subjects based on exposure, then follows them and measures
disease occurrence. It is a powerful and expensive study design -
✔✔prospective cohort study
the study of the frequency, distribution and causative factors of injury and
disease in the human population - ✔✔Epidemiology
difference between the smallest and largest - ✔✔sample range distribution
1
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
,100 dBA is two hours - ✔✔OSHA's permissible noise exposure
at or above 85 dBA - ✔✔As part of a hearing conservation program,
audiograms must be performed if the exposure is
4000 Hertz range. - ✔✔Hearing loss is often first detected
the analysis of blood, urine, skin, etc., to determine the presence of agents
or metabolites - ✔✔Biological monitoring
Pulmonary function testing and audiometry - ✔✔Examples of biological
function measurements
look for excess phenol in the urine. - ✔✔To assess benzene exposure
motor vehicle use - ✔✔The single largest cause of on-the-job fatalities
Study of adverse effects on biological systems - ✔✔Toxicology
collect information on the incidence of occupational disease, illness and
accidents. - ✔✔medical surveillance
protect the public. - ✔✔The primary purpose of the Nurse Practice Act is to:
assist workers to achieve a high level of health - ✔✔prime objective of any
occupational health nursing service is to
2
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
, identify the scope of practice - ✔✔Nursing protocols are designed to
80-90%. - ✔✔correlation between mutagenicity (as measured by the Ames
test) and carcinogenicity is estimated to be in the range of:
The process of attaining desired results through the effective utilization of
human resources is - ✔✔Management
The process of developing the skills and knowledge of an individual for the
purpose of improved performance is called - ✔✔training
Intraperitoneal - ✔✔In animal toxicological testing, what is the most
common route of administration
microphone divides the sound into frequency bands that are called octaves.
It measures the sound pressure levels in each band. - ✔✔octave band
analyzer
particles are the least penetrating. - ✔✔Alpha
the lethal dose for 100% of animals tested - ✔✔LD100
category A1 carcinogen - ✔✔confirmed human carcinogen.
3
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
Detailed Answers | Already Graded A+
probabilistic science. - ✔✔Epidemiology
LC50 - ✔✔The amount of a chemical that kills 50% of the organisms
exposed to it in air is the:
The nature, degree and extent of undesirable effects of a substance is
known as the - ✔✔toxicity
the probability that injury will result from the use of a substance - ✔✔hazard
selects subjects based on exposure, then follows them and measures
disease occurrence. It is a powerful and expensive study design -
✔✔prospective cohort study
the study of the frequency, distribution and causative factors of injury and
disease in the human population - ✔✔Epidemiology
difference between the smallest and largest - ✔✔sample range distribution
1
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
,100 dBA is two hours - ✔✔OSHA's permissible noise exposure
at or above 85 dBA - ✔✔As part of a hearing conservation program,
audiograms must be performed if the exposure is
4000 Hertz range. - ✔✔Hearing loss is often first detected
the analysis of blood, urine, skin, etc., to determine the presence of agents
or metabolites - ✔✔Biological monitoring
Pulmonary function testing and audiometry - ✔✔Examples of biological
function measurements
look for excess phenol in the urine. - ✔✔To assess benzene exposure
motor vehicle use - ✔✔The single largest cause of on-the-job fatalities
Study of adverse effects on biological systems - ✔✔Toxicology
collect information on the incidence of occupational disease, illness and
accidents. - ✔✔medical surveillance
protect the public. - ✔✔The primary purpose of the Nurse Practice Act is to:
assist workers to achieve a high level of health - ✔✔prime objective of any
occupational health nursing service is to
2
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
, identify the scope of practice - ✔✔Nursing protocols are designed to
80-90%. - ✔✔correlation between mutagenicity (as measured by the Ames
test) and carcinogenicity is estimated to be in the range of:
The process of attaining desired results through the effective utilization of
human resources is - ✔✔Management
The process of developing the skills and knowledge of an individual for the
purpose of improved performance is called - ✔✔training
Intraperitoneal - ✔✔In animal toxicological testing, what is the most
common route of administration
microphone divides the sound into frequency bands that are called octaves.
It measures the sound pressure levels in each band. - ✔✔octave band
analyzer
particles are the least penetrating. - ✔✔Alpha
the lethal dose for 100% of animals tested - ✔✔LD100
category A1 carcinogen - ✔✔confirmed human carcinogen.
3
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
