Communities Exam 2 Nies Community/Public Health A+ Guaranteed

1. The nurse working in the community is aware that there are different models for studying the epidemiology of a health condition in a population. One model of investigation of the interrelationships and characteristics of disease is the epidemiological triangle. This model analyses what three elements? B. Agent, host, and environment The epidemiological triangle considers the extent of the host's exposure to the agent, the virulence of the agent, and the host's genetic or immunological susceptibility to the agent. Environmental conditions at the time of exposure are also considered. Examination of these three elements allows assessment of the problem, determination of protective factors, and evaluation of the vulnerability of the host to disease. The person-place-time model organized epidemiologists' investigations of the disease pattern in the community. Answer options A and D do not represent an epidemiologic model. 2. When chronic disease became a more important cause of death in developed countries, different epidemiologic models were developed to study the many factors involved in the development of these health conditions. Which is an example of such a model? C. Web of causation