NR503 Midterm Exam Study Guide (Newest-2023, Version-1)/ NR 503 Midterm Exam Study Guide: Population Health, Epidemiology & Statistical Principles: Chamberlain College of Nursing

NR503 Midterm Exam Study Guide (Newest-2023,
Version-1)/ NR 503 Midterm Exam Study Guide:
Population Health, Epidemiology & Statistical
Principles: Chamberlain College of Nursing



1. **What is the primary focus of epidemiology?**

- A) Individual patient care

- B) Risk, data, demographics, and outcomes in populations

- C) Surgical interventions

- D) Pharmaceuticalಸ

- **Answer:** B) Risk, data, demographics, and outcomes in populations

- **Rationale:** Epidemiology studies disease distribution and determinants in populations,
not individual care.[](https://www.docsity.com/en/nr-503-population-health-epidemiology-
statistical-principles-chamberlain-final-exam/11036872/)



2. **What is the World Health Organization’s definition of health?**

- A) Absence of disease

- B) Complete physical, mental, and social well-being

- C) Physical fitness

- D) Mental stability

- **Answer:** B) Complete physical, mental, and social well-being

- **Rationale:** WHO defines health holistically, including emotional and occupational well-
being.[](https://www.docsity.com/en/nr503-nr-503-population-health-epidemiology-statistical-
principles-midterm-exam-3/8157740/)

,3. **What is the goal of public health?**

- A) Treat individual diseases

- B) Promote population health through organized efforts

- C) Develop new medications

- D) Provide hospital care

- **Answer:** B) Promote population health through organized efforts

- **Rationale:** Public health focuses on community-wide health
promotion.[](https://www.docsity.com/en/nr503-nr-503-population-health-epidemiology-
statistical-principles-midterm-exam-3/8157740/)



4. **Which is an assumption of epidemiology?**

- A) Diseases are randomly distributed

- B) Diseases have no causal factors

- C) Individual behaviors do not affect disease

- D) Diseases have identifiable causal and preventive factors

- **Answer:** D) Diseases have identifiable causal and preventive factors

- **Rationale:** Epidemiology assumes diseases have causes that can be identified and
prevented.[](https://www.docsity.com/en/nr503-nr-503-population-health-epidemiology-
statistical-principles-midterm-exam-3/8157740/)



5. **What does prevalence measure?**

- A) New cases over time

- B) Existing cases at a specific time

- C) Mortality rates

- D) Treatment outcomes

- **Answer:** B) Existing cases at a specific time

, - **Rationale:** Prevalence is the proportion of a population with a condition at a given
time.[](https://www.docsity.com/en/nr-503-population-health-epidemiology-statistical-
principles-chamberlain-final-exam/11036872/)



6. **What does incidence measure?**

- A) Total cases in a population

- B) New cases in a population over time

- C) Death rates

- D) Recovery rates

- **Answer:** B) New cases in a population over time

- **Rationale:** Incidence measures new cases in a population at risk during a
period.[](https://www.docsity.com/en/nr-503-population-health-epidemiology-statistical-
principles-chamberlain-final-exam/11036872/)



7. **What is surveillance in epidemiology?**

- A) Treating diseases

- B) Collecting, analyzing, and disseminating health data

- C) Developing vaccines

- D) Performing surgeries

- **Answer:** B) Collecting, analyzing, and disseminating health data

- **Rationale:** Surveillance monitors health trends to inform public health
actions.[](https://www.docsity.com/en/nr-503-population-health-epidemiology-statistical-
principles-chamberlain-final-exam/11036872/)



8. **What is a nosocomial infection?**

- A) Community-acquired infection

- B) Hospital-acquired infection

- C) Zoonotic infection