A public health nurse and a public health team are assessing a community using the ecological model. Which of the following characteristics should the team consider first?
Individual
Close social circles
Social and cultural factors
Environment
The Correct Answer is D
Choice A Reason:
Considering the individual characteristics first focuses on personal attributes such as age, gender, genetics, and personal health behaviors. While these factors are important, the ecological model emphasizes the broader context in which individuals live. Starting with individual characteristics may overlook the larger environmental and social influences that significantly impact health outcomes.
Choice B Reason:
Close social circles, including family, friends, and immediate social networks, play a crucial role in shaping health behaviors and providing support. These relationships can influence lifestyle choices, stress levels, and access to resources. However, focusing on close social circles first may not capture the broader environmental and societal factors that also affect health.
Choice C Reason:
Social and cultural factors encompass the norms, values, and practices of the community. These factors influence health behaviors, access to healthcare, and overall well-being. While social and cultural factors are vital, they are part of a larger context that includes the physical environment. Addressing these factors without considering the environment may provide an incomplete picture of the community's health.
Choice D Reason:
The environment includes the physical, social, and economic conditions in which people live. This encompasses factors such as housing quality, access to green spaces, pollution levels, and availability of healthcare services. The environment sets the stage for individual and community health by influencing exposure to risks and access to resources. Starting with the environment provides a comprehensive understanding of the context in which individuals and communities operate, making it the most appropriate starting point for an ecological assessment.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A Reason:
Increased exposure increases the risk of developing the disease. This statement describes a dose-response relationship, which is another important criterion for establishing causation. It indicates that as the level of exposure to a potential cause increases, the risk of developing the disease also increases. However, this does not specifically address the temporal sequence required to establish causation.
Choice B Reason:
The exposure must come before the disease develops. This is the correct definition of a temporal relationship in epidemiological studies. For causation to be established, it is essential that the exposure to the potential cause occurs before the onset of the disease. This temporal sequence is crucial because it helps to rule out reverse causation, where the disease might influence the exposure rather than the other way around.
Choice C Reason:
When the exposure is decreased or eliminated, the risk of disease declines or is eliminated. This statement describes the concept of reversibility, which is another criterion for causation. It suggests that reducing or removing the exposure should lead to a decrease in the incidence of the disease. While important, it does not specifically define the temporal relationship.
Choice D Reason:
A relationship is biologically plausible, and it makes sense. This statement refers to biological plausibility, which means that the observed association between exposure and disease is consistent with existing biological or medical knowledge. While biological plausibility supports causation, it does not define the temporal sequence necessary to establish a causal relationship.

Correct Answer is A
Explanation
Choice A reason: Working with the floor manager to decide on some light duty work for a nurse aide who is recovering from a broken ankle
This intervention is an example of tertiary prevention. Tertiary prevention aims to manage and rehabilitate individuals with existing health conditions to prevent further complications and improve their quality of life. By arranging light duty work, the nurse helps the aide continue working while accommodating their recovery, thus preventing further injury and promoting rehabilitation.
Choice B reason: Conducting an in-service on using the new patient lift device to prevent back injuries in the nursing staff
This intervention is an example of primary prevention. Primary prevention aims to prevent diseases or injuries before they occur by reducing exposure to hazards. Conducting training on using patient lift devices helps prevent back injuries among the nursing staff by promoting safe handling techniques.
Choice C reason: Screening the staff for Tuberculosis (TB) exposure
This intervention is an example of secondary prevention. Secondary prevention aims to detect and treat diseases early to halt their progression. Screening for TB exposure helps identify infected individuals early, allowing for timely treatment and preventing the spread of the disease.
Choice D reason: Administering the annual flu vaccine to the employees
This intervention is also an example of primary prevention. Administering flu vaccines helps prevent the onset of influenza by boosting the immune system's ability to fight the virus. Vaccination is a proactive measure to reduce the incidence of flu among employees.
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