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The three different types of epidemiological nutrition studies: cross-sectional, case-control, and prospective cohort studies. The three basic types of nutrition research are randomized, animal and laboratory studies, and cohort studies.
Cross-sectional studies are used primarily to determine the prevalence of a problem, while cohort studies involve the study of a population that is both exposed and unexposed to the cause of the disease. Case control studies are used to study 2 groups of cases (diseased) and controls (non-diseased) and to identify risk factors between them. Randomized trials, researchers actually intervene to see how a particular behavior change or treatment, for example, will affect a health outcome. Animal and laboratory studies are studies carried out in laboratories on cells, tissues or animals. Laboratories provide tightly controlled conditions that have a broad impact on human health.
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Answer:
A, D, and E.
Explanation:
Students in nursing should never be given duties for which they are unprepared. When not in class, a nursing student can work as a nursing assistant or a nurse's aide. If a nursing student is asked to undertake a duty for which he or she is unprepared, the nursing supervisor should be informed as soon as feasible. If a customer is hurt, a nursing student is held responsible. Because consent forms are legal documents, a nursing student is not an employee of the hospital and cannot act as a witness to them.
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Answer:
Mr. Chen can disenroll from his employer-sponsored coverage to elect a Medicare Advantage or Part D plan within 2 months of his disenrollment, but he should revaluate if he really wants to drop his employer coverage.
