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NR 503 Midterm Study Questions and Answers Fully Solved
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NR 503 Midterm Study
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NR 503 Midterm StudyEpidemiology - answer The study of disease distribution within populations and the risk
factors that affect increases or decreases in distribution
Risk Factor - answer a condition that may adversely affect an individual's health
prevalence rate - answer The number of affected persons present in the population at a
specific time divided by the number of persons in the population at that time.
incidence rate - answer the number of new cases of disease within a population during
a specific period
primary prevention - answer preventing a disease or disorder before it happens
secondary prevention - answer screening and early detection
tertiary prevention - answer Interventions that would prevent complications from chronic
conditions and prevent further illness, injury, or disability.
Validity - answerability of test to distinguish correctly who has a disease
Sensitivity - answerThe ability of a test to identify correctly those who have the disease.
Specificity - answerThe ability of the test to identify correctly those who do not have the
disease.
absolute risk - answerthe incidence of disease in a population
Attributable risk - answerhow much of a risk of the disease we hope to prevent if able to
eliminate exposure to the agent in question
relative risk - answerThe ratio of the risk of disease in exposed individuals to the risk of
disease in non-exposed individuals.
odds ratio - answerthe ratio of the odds of development of disease in a non-exposed
person
immunity - answerability of a single person to remain free of clinical illness following
exposure to an infectious agent
necessary - answerdisease will occur only if factor present
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