NSG 3480 Exam 2 Study Guide Solutions
Epidemiology - Ans:-the study of the distribution and determinants of health and disease in human
population
Three Elements of the Epidemiological Triangle - Ans:-- Agent: actual cause of disease
- Host: carrier of disease
- Environment: any outside factor...
Wheel Model of Epidemiology - Ans:✔✔-The wheel model stresses the multiplicity of host and
environmental interactions have developed and understanding of disease has progressed.
Which is better the triangle or the wheel? - Ans:✔✔-The Wheel Model subscribes to multiple-causation
disease theory; therefore, it is MORE USEFUL for analyzing complex chronic conditions and identifying
factors that are amendable to nursing intervention.
Web of Causation Model - Ans:✔✔-In essence, the web of causation model is better at showing the
relationships among variables.
Incidence rates - Ans:✔✔-describe the occurrence of new cases of a disease or condition in a community
Prevalence rate - Ans:✔✔-is the number of all cases of a specific disease or condition in a population at a
given point in time
Meaningful Comparisons - Ans:✔✔-The community nurse compares data with rates from other cities,
counties, districts, or states; from the nation; and from previous records.
*SHOWS TRENDS*
Risk - Ans:✔✔-probability of an adverse event
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