In researching cases of West Nile virus in the community, the nurse explores how the interactions among people infected with this virus, mosquitoes, and the environment they share contribute to outbreaks of this disease
Which epidemiologic model is used in this case?
A) Epidemiologic triad
B) Wheel of causation
C) Web of causation
D) Natural history
Ans: A
Feedback:
The epidemiologic triad is the classic model based on the belief that health status is determined by the interaction of the characteristics of the host, agent, and environment, not by any single factor. The wheel of causation de-emphasizes the agent as the sole cause of disease while emphasizing the interplay of physical, biological, and social environments. The web of causation is an epidemiologic model that strongly emphasizes the concept of multiple causation while de-emphasizing the role of agents in explaining illness. Natural history is the course of a disease or condition from the onset to resolution.
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The nurse is working as a community health care nurse. What would be the nurse's focus when providing care of the child?
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Which statement by the parent of two children with head lice indicates an understanding of the nurses' instructions to rid the home of lice?
A) "I will put the stuffed animals in a sealed plastic bag for 1 week." B) "Combs and brushes will be rid of lice after soaking in alcohol." C) "If I find lice in the eyelashes I will use a pediculicide on them." D) "I will wash the bed sheets in hot water and dry on a hot cycle for at least 20 minutes."