A public health nurse is participating in a research study to determine how virulent a new virus is. Which of the following mortality measures should the nurse use to calculate this data?
Cause-specific mortality rate
Age-specific mortality rate*
Proportionate mortality
Case fatality
The Correct Answer is D
Choice A Reason:
The cause-specific mortality rate measures the number of deaths attributed to a specific cause within a population during a given time period. While this measure is useful for understanding the impact of a particular disease on a population, it does not directly indicate the virulence of a virus. Virulence refers to the severity or harmfulness of a disease, which is better captured by the case fatality rate.
Choice B Reason:
The age-specific mortality rate calculates the number of deaths within specific age groups in a population. This measure helps identify age-related mortality trends but does not provide information about the virulence of a virus. Age-specific mortality rates are more useful for understanding the impact of diseases across different age demographics rather than assessing the severity of a new virus.
Choice C Reason:
Proportionate mortality refers to the proportion of deaths in a population attributable to a specific cause relative to all deaths. This measure helps in understanding the relative importance of different causes of death but does not directly measure the virulence of a virus. Proportionate mortality is more about the distribution of causes of death rather than the severity of a particular disease.
Choice D Reason:
Case fatality rate (CFR) is the most appropriate measure for determining the virulence of a new virus. CFR is calculated by dividing the number of deaths caused by the disease by the number of diagnosed cases of the disease, then multiplying by 100 to get a percentage. This measure directly indicates the lethality of the virus by showing the proportion of diagnosed cases that result in death. It is a critical indicator for assessing the severity and potential impact of a new infectious disease.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A: Incubation Period
The incubation period refers to the time between exposure to an infectious agent and the appearance of symptoms. During this stage, the pathogen is multiplying within the host, but there are no visible signs or symptoms of the disease. Primary prevention methods, such as education about safe sex practices and vaccination, are not typically associated with this stage because they aim to prevent the initial exposure to the pathogen.
Choice B: Stage of Clinical Illness
The stage of clinical illness is when the disease manifests with recognizable symptoms and signs. At this point, the focus is often on secondary prevention (early detection and treatment) and tertiary prevention (managing symptoms and preventing complications). Primary prevention methods are less relevant during this stage because the goal is to prevent the disease from occurring in the first place, rather than managing it after symptoms appear.
Choice C: Stage of Recovery, Disability, or Death
This stage represents the outcomes of the disease, where the individual either recovers, experiences long-term disability, or dies. Interventions at this stage are typically tertiary prevention measures, aimed at rehabilitation and reducing the impact of the disease. Primary prevention methods are not applicable here, as they are intended to prevent the disease from occurring initially.
Choice D: Stage of Susceptibility
The stage of susceptibility is the period before the disease process begins, where individuals are at risk of developing the disease. Primary prevention methods are most effective during this stage, as they aim to reduce the risk of exposure to the pathogen and enhance the individual's resistance to infection. Examples include education on safe sex practices, vaccination, and promoting healthy behaviors to prevent sexually transmitted infections⁴⁵.
Correct Answer is D
Explanation
Choice A: Develop a Team Strategy
Developing a team strategy is an important step in the CHANGE model, but it is not the first step. Before a strategy can be developed, it is essential to have a team in place. The team will collaborate to create a strategy that aligns with the community's needs and goals.
Choice B: Gather Data
Gathering data is a crucial part of the community assessment process. However, it is not the initial step in the CHANGE model. Data collection comes after the team has been assembled and a strategy has been developed. The team needs to be in place to determine what data is needed and how it will be collected.
Choice C: Build the Community Action Plan
Building the community action plan is a later step in the CHANGE model. This step involves using the data collected to develop a plan that addresses the community's health needs. The action plan is created after the team has been assembled, a strategy has been developed, and data has been gathered.
Choice D: Assemble the Team
This is the correct first step in the CHANGE model. Assembling the team involves bringing together a diverse group of stakeholders who will work collaboratively to assess the community and develop an action plan. The team typically includes representatives from various sectors of the community, such as health care, education, business, and local government.
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