FIRST PUBLISH OCTOBER 2024
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 factors
Use of Epidemiology in Disease Control and Prevention - Ans:✔✔-PERSON: "Who" factors, such as
demographic characteristics, health, and disease status
PLACE: "Where" factors, such as geographic (data) location, climate and environmental conditions, and
political and social environment
TIME: "When" factors, such as time of day, week, or month and secular trends over months and years
Page 1/13
, ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
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
Page 2/13