A community health nurse is preparing an in-service for staff to define the conditions of causation in epidemiology studies. Which of the following descriptions should the nurse use to define a cessation of exposure to establish causation?
"When the exposure is decreased or eliminated, the risk of disease declines or is eliminated."
"The exposure must come before the disease develops.
"A relationship is biologically possible, and it makes sense."
"Increased exposure increases the risk of developing the disease."
The Correct Answer is A
Choice A: "When the Exposure is Decreased or Eliminated, the Risk of Disease Declines or is Eliminated."
This statement accurately describes the concept of cessation of exposure in establishing causation. According to the Bradford Hill criteria, if a factor is truly causal, reducing or eliminating exposure to that factor should lead to a decrease in the incidence of the disease. This principle helps to confirm the causal relationship between the exposure and the disease.
Choice B: "The Exposure Must Come Before the Disease Develops."
This statement refers to the temporal relationship criterion in the Bradford Hill criteria, which states that for an exposure to be considered causal, it must precede the onset of the disease. While this is an important aspect of establishing causation, it does not specifically address the concept of cessation of exposure.
Choice C: "A Relationship is Biologically Possible, and it Makes Sense."
This statement pertains to the biological plausibility criterion, which suggests that the observed association between an exposure and a disease should be consistent with existing biological and medical knowledge. While biological plausibility is crucial for establishing causation, it does not directly relate to the cessation of exposure.
Choice D: "Increased Exposure Increases the Risk of Developing the Disease."
This statement describes the dose-response relationship, another criterion in the Bradford Hill framework. It indicates that a greater level of exposure to a risk factor should correspond to a higher risk of developing the disease. Although this is an important aspect of causation, it does not specifically address the cessation of exposure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A Reason:
Data analysis involves examining and interpreting the collected data to identify patterns, trends, and relationships. This stage includes statistical analysis, creating comparative tables, and computing measures of association such as risk ratios or odds ratios. While crucial, this stage comes after the conceptualization and design phase.
Choice B Reason:
Conduct/implementation refers to the actual execution of the study, including data collection and ensuring that the study follows the designed protocol. This stage involves gathering data from participants, ensuring compliance with ethical standards, and managing the logistics of the study. It follows the conceptualization and design phase.
Choice C Reason:
Conceptualization/design is the initial stage of an analytic study where the research question is defined, hypotheses are generated, and the study design is developed. This stage involves planning the methodology, selecting the study population, and determining the data collection methods. The nurse's involvement in this stage indicates participation in the foundational planning and structuring of the study.
Choice D Reason:
Interpretation of findings involves analyzing the results of the data analysis to draw conclusions and make recommendations based on the study's outcomes. This stage includes discussing the implications of the findings, identifying limitations, and suggesting areas for further research. It is one of the final stages of the study process.
Correct Answer is B
Explanation
Choice A: Health Care Illiteracy
Health care illiteracy refers to a lack of understanding about health information and services needed to make appropriate health decisions. While this is an important issue, it is not the immediate priority in this scenario. The client's report of skipping meals indicates an urgent need for addressing food insecurity, which directly impacts their health and well-being.
Choice B: Food Access
This is the correct choice. Food access is a critical issue because it directly affects the client's nutritional status and overall health. Skipping meals due to financial constraints can lead to malnutrition, weakened immune function, and delayed recovery from cellulitis. Ensuring the client has access to adequate and nutritious food is essential for their immediate health needs and recovery.
Choice C: Economic Stability
Economic stability is important for long-term health and well-being, but it is not the most immediate concern in this scenario. Addressing food access will have a more direct and immediate impact on the client's health. Once the client's nutritional needs are met, the nurse can then work on connecting the client with resources to improve their economic stability.
Choice D: Quality of Education
Quality of education is a significant factor in overall health and socioeconomic status, but it is not the immediate priority in this case. The client's immediate health needs, particularly their access to food, should be addressed first. Education can be part of a longer-term plan to improve the client's economic stability and health literacy.
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