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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A: Proportionate Mortality
Proportionate mortality refers to the proportion of deaths in a specified population over a period of time attributable to different causes. It is expressed as a percentage of the total number of deaths. While this measure can provide insight into the relative importance of different causes of death, it does not give the actual mortality rate for each cause. Therefore, it is not the best measure for identifying the top three causes of death in a county.
Choice B: Crude Mortality Rate
The crude mortality rate is the total number of deaths from all causes per 1,000 or 100,000 population in a given year. This measure provides an overall picture of the mortality level in a population but does not specify the causes of death. It is useful for general mortality trends but not for identifying specific causes of death.
Choice C: Cause-Specific Mortality Rate
The cause-specific mortality rate is the number of deaths from a specific cause per 100,000 population in a given year. This measure is the most appropriate for identifying the top three causes of death because it provides detailed information on the mortality rate for each specific cause. By calculating the cause-specific mortality rates, the nurse can determine which causes are the most significant contributors to mortality in the county.
Choice D: Case Fatality
Case fatality refers to the proportion of individuals diagnosed with a particular disease who die from that disease within a specified period. It is usually expressed as a percentage. While case fatality provides information on the severity of a disease, it does not give the overall mortality rate for the population or help identify the top causes of death.
Correct Answer is D
Explanation
Choice A Reason:
Posting the analyzed findings on the health department section of the city's website is important for transparency and public awareness. It allows the community to access the information and understand the health issues identified. However, this action alone does not directly address the health issues identified in the assessment. It is more of a communication strategy rather than an intervention.
Choice B Reason:
Educating members of a vulnerable population about available public health services is a crucial step in ensuring that these populations can access the services they need. This action helps in bridging the gap between the health department and the community. However, it is a part of the implementation phase rather than the planning phase. The primary goal of the assessment is to identify issues and plan interventions.
Choice C Reason:
Conducting focus groups with local residents to discuss their usage of public health services is a valuable method for gathering qualitative data and understanding community needs and behaviors. This can provide deeper insights into the issues identified in the assessment. However, like choice B, this is more of a data collection method rather than a direct action plan to address the identified health issues.
Choice D Reason:
Preparing a plan to address a health issue in a specific area of the city is the most direct and actionable step that aligns with the core function of assessment. The purpose of conducting a community health assessment is to identify health issues and develop strategies to address them. This choice involves creating a targeted intervention plan based on the findings, which is the ultimate goal of the assessment process.
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