A nurse is examining the agent, host and environmental factors which can lead to disease. Which of the following models would the nurse most likely use?
Epidemiologic triangle
Health promotion
Natural history of disease
Levels of prevention
The Correct Answer is A
A. Epidemiologic triangle: The epidemiologic triangle is a public health model that examines three key components of disease transmission:
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Agent – The microorganism (bacteria, virus, fungus, etc.).
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Host – The person or animal that harbors the disease.
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Environment – External conditions that contribute to disease spread.
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B. Health promotion: The health promotion model focuses on behavioral and lifestyle changes to prevent illness rather than examining the direct causes of disease.
C. Natural history of disease: The natural history of disease describes how a disease progresses without intervention from the initial exposure to resolution or chronicity, but it does not specifically analyze the agent, host, and environment.
D. Levels of prevention: The levels of prevention (primary, secondary, tertiary) focus on preventing and managing disease, but they do not analyze the factors leading to disease transmission like the epidemiologic triangle does.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Study the beliefs and traditions of persons living in other cultures: While learning about other cultures is important, it should follow self-reflection to prevent ethnocentric judgments.
B. Complete a survey of all the various ethnicities represented in the nurse's community: This provides demographic knowledge but does not help the nurse develop personal cultural competence.
C. Consider how the nurse's own personal beliefs and decisions are reflective of his or her culture. Cultural competence begins with self-awareness. Nurses must first recognize how their own cultural background, beliefs, and biases influence their interactions with patients before effectively understanding and respecting others' cultures.
D. Invite a family from another culture to join the nurse for an event: While engaging with diverse groups is beneficial, it is not the first step in cultural competence.
Correct Answer is B
Explanation
A. Number of true negatives / (true negatives + false positives): This formula is used to calculate specificity, not incidence.
B. Number of new cases in a period of time / total population × base multiple of 10: Incidence rate measures the number of new cases of a disease occurring in a population during a specific period. It is expressed per a base population size (e.g., per 1,000 or 100,000 people) to allow for comparisons across different populations.
C. Number of true positives / (true positives + false negatives): This formula is used to calculate sensitivity, not incidence.
D. Number of new cases + number of old cases in a period of time / total population × base multiple of 10: This describes prevalence, which includes both new and existing cases, not incidence.
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