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NUR 426 Exam 3 Post Test Questions And Already Passed Answers.
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What are the three critical areas of environmental risk factors? - Answer safe air quality conditions, safe water supplies, and safe soils in a nations farming industry What do public health professionals use to reduce risk associated with what we breathe and ingest? - Answer education, en...

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  • October 3, 2024
  • 15
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • environmental risk factors

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  • NUR 426
  • NUR 426

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NUR 426 Exam 3 Post Test Questions
And Already Passed Answers.
What are the three critical areas of environmental risk factors? - Answer safe air quality conditions,
safe water supplies, and safe soils in a nations farming industry



What do public health professionals use to reduce risk associated with what we breathe and ingest? -
Answer education, engineering, and enforcement



What is demography? - Answer studying person related variables in a population of interests over two
or more time periods with the goal of finding trends



What is life expectancy? - Answer The average a number of years a newborn can expect to live at
current mortality levels.



What are biostatistics? - Answer looks at variations in data between humans; helps us study health and
wellness



How are demography and biostatistics significant in epidemiology? - Answer - helps us to understand
epidemiology (incidence, distribution, and possible control) of diseases in various populations

- if we can see trends in demography, biostatistics, mortality, and life expectancy this can help us to
better determine health inequities and what we can do to provide equitable care on a population level



where do we get demographic data? - Answer census, community level data, national surveys



what variables are considered demographic data? - Answer age, gender, and ethnicity



what are the three CONSTANTS of the epidemiological triangle? - Answer person (demographics), place
(city/country), time

, what is surveillance and what is the purpose of surveillance data collection of communicable diseases? -
Answer - ongoing collection, analysis, and interpretation of health related data

- helps us to predict when/where/severity of a communicable disease so we can stop the disease
process and protect more people



What is genomics? ethical dilemmas? - Answer - looking at the genetic epidemiology of diseases AKA
genes that affect if someone does or doesn't develop a disease

- protection against discrimination may be difficult



What is infectivity? - Answer how easily an organism causes disease



What is the difference between infectivity and virulence? - Answer infectivity is how easy people catch
the disease, virulence is how sick it makes the person

ex: colds have high infectivity but low virulence



What is the secondary attack/response rate? - Answer number of new cases among contacts of new
cases divided by total number of population at risk



ex: if four people at a retirement center tested positive for covid after being exposed to a confirmed
covid positive visitor and we divided it by the total number of people in the retirement center unit
without the covid vaccine (50) we would get the secondary attack rate of 8%



What is the disease prevalence? how is it calculated? - Answer - number of accumulated cases of a
disease including new and pre-existing at one time

- number of existing cases divided by the total people in a population

ex: 200 students at ABC college out of the total 600 students reported having anxiety at some point since
beginning college (200/600)= 33% prevalence rate of anxiety in students at ABC college



What is the incidence of a disease? - Answer number of NEW cases of a disease at a specific time or
period of time divided by the total number at risk during that time



example: 10 students at ABC college out of the total 600 students tested positive for the flu in the past
three days (10/600)= 1.7% incidence rate

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