The nurse explores all of the possible factors that contribute to ...

[jessicacav]

The nurse explores all of the possible factors that contribute to coronary artery disease in the community as links in multiple interrelated chains. Which epidemiologic models is the nurse using?
 
  A) Epidemiologic triad
  B) Wheel of causation
  C) Web of causation
  D) Natural history

Question 2

Who was the best known epidemiologist of the 19th century and used population data and personal observations to investigate the epidemic of cholera that occurred from 1848 through 1854?
 
  A) William Farr
  B) John Graunt
  C) Florence Nightingale
  D) John Snow

[Anonymous]

Answer to Question 1

Ans: C
Feedback:
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. 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. Natural history is the course of a disease or condition from the onset to resolution.

Answer to Question 2

Ans: D
Feedback:
John Snow performed epidemiologic research on transmission of cholera using natural experiments, mapping, and rates. William Farr is considered the father of modern statistics. John Graunt analyzed weekly reports of births and deaths. Florence Nightingale used statistics to improve public health in England.

[jessicacav]

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[LegendaryAnswers]

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