A community health nurse is educating a newly licensed nurse about sensitivity and specificity using a two-by-two table. Which of the following statements by the newly licensed nurse indicates an understanding of the table related to false negatives?
False negatives are represented in the table cell that indicates the person does not have the disease and the test does not indicate disease.
False negatives are represented in the table cell that indicates the person has the disease and the test indicates the person has the disease.
False negatives are represented in the table cell that indicates the person has the disease and the test does not indicate disease.
False negatives are represented in the table cell that indicates the person does not have the disease and the test indicates disease.
The Correct Answer is C
Choice A Reason:
This statement is incorrect because it describes a true negative, not a false negative. A true negative occurs when the test correctly identifies that a person does not have the disease. In a two-by-two table, this is represented in the cell where both the actual status and the test result indicate no disease.
Choice B Reason:
This statement is incorrect because it describes a true positive, not a false negative. A true positive occurs when the test correctly identifies that a person has the disease. In a two-by-two table, this is represented in the cell where both the actual status and the test result indicate the presence of the disease.
Choice C Reason:
This statement is correct because it accurately describes a false negative. A false negative occurs when the test incorrectly indicates that a person does not have the disease when, in fact, they do. In a two-by-two table, this is represented in the cell where the actual status indicates the presence of the disease, but the test result indicates no disease.
Choice D Reason:
This statement is incorrect because it describes a false positive, not a false negative. A false positive occurs when the test incorrectly indicates that a person has the disease when, in fact, they do not. In a two-by-two table, this is represented in the cell where the actual status indicates no disease, but the test result indicates the presence of the disease.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A Reason:
Local ordinances are important for shaping the built environment, as they dictate land use, zoning, and building codes. However, they are not a core feature of the built environment assessment tool itself. Instead, they are external factors that influence the built environment.
Choice B Reason:
Financial stability is crucial for the overall well-being of a community, but it is not a direct feature of the built environment assessment tool. Financial stability impacts the resources available for community development and maintenance but does not directly assess the physical environment.
Choice C Reason:
The community at large refers to the broader population and social dynamics within a community. While understanding the community is essential for comprehensive assessments, the built environment assessment tool focuses more on physical and infrastructural elements rather than social aspects.
Choice D Reason:
Walkability is a core feature of the built environment assessment tool. Walkability assesses how friendly an area is to walking, considering factors such as the presence of sidewalks, pedestrian crossings, and the proximity of amenities. High walkability is associated with numerous health benefits, including increased physical activity and reduced risk of chronic diseases. It is a critical component in evaluating the built environment's impact on community health.
Correct Answer is D
Explanation
Choice A reason: "Although I live in the country, my neighbor takes me shopping each week. It takes about 10 minutes for us to drive to the nearest grocery store."
This statement indicates that the client has access to a grocery store within a reasonable driving distance, even though they rely on a neighbor for transportation. While this situation may present some challenges, it does not fit the definition of a food desert, which is characterized by limited access to affordable and nutritious food.
Choice B reason: "Sometimes I get food from the Salvation Army food pantry that is about a half a mile from my house."
This statement suggests that the client has access to a food pantry relatively close to their home. While relying on food pantries can indicate food insecurity, it does not necessarily mean the client lives in a food desert. Food deserts are defined by the lack of access to grocery stores that provide fresh and nutritious food.
Choice C reason: "I am able to walk to a grocery store that is 5 blocks away from my apartment."
This statement indicates that the client has convenient access to a grocery store within walking distance. This accessibility does not align with the characteristics of a food desert, where residents typically have to travel long distances to reach a grocery store.
Choice D reason: "I cannot always afford ride-share services to get to the nearest store, which is 30 minutes away from where I live."
This statement fits the definition of a food desert. The client has to travel a significant distance to reach the nearest grocery store and faces financial barriers to accessing transportation. This limited access to grocery stores that provide fresh and nutritious food is a key characteristic of food deserts.
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