WGU D450 Community Health And
Population-Focused Nursing OA Exam 1
QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) PLUS RATIONALES
2025
1. A nurse is developing a program to reduce obesity in a local
community. Which level of prevention is this?
A. Tertiary prevention
B. Secondary prevention
C. Primary prevention
D. Restorative prevention
Primary prevention aims to prevent disease before it occurs. A
weight reduction program promotes health and prevents obesity-
related complications.
,2. Which federal program provides health insurance for individuals aged
65 and older?
A. Medicaid
B. Medicare
C. CHIP
D. Affordable Care Act
Medicare is the federal health insurance program for people 65+,
certain younger people with disabilities, and ESRD patients.
3. A nurse is using the epidemiological triangle. What does this model
include?
A. Host, Environment, Provider
B. Host, Agent, Environment
C. Person, Place, Time
D. Risk, Exposure, Disease
The epidemiological triangle consists of host, agent, and
environment, used to understand disease causation.
4. The community health nurse is screening for tuberculosis. What level
of prevention is this?
A. Primary
B. Secondary
C. Tertiary
D. Quaternary
, Secondary prevention focuses on early disease detection and
intervention, like screening for TB.
5. Which describes the primary goal of case management?
A. Increase hospital admissions
B. Control provider access
C. Coordinate cost-effective care
D. Reduce nursing autonomy
Case management ensures cost-effective and coordinated care
across services for improved outcomes.
6. A school nurse notices increased absenteeism due to asthma. What is
the next best action?
A. Call parents individually
B. Collaborate with local health providers for an asthma education
program
C. Refer to child protective services
D. Ignore unless it exceeds 10 days
Collaboration and education address the root cause, improving
attendance and asthma control.
7. What is the main goal of Healthy People 2030?
A. Increase private insurance enrollment
B. Improve health and reduce health disparities
C. Focus solely on chronic diseases
D. Limit public health interventions
, Healthy People 2030 promotes health and well-being and aims to
eliminate health disparities.
8. What is an example of a population-focused intervention?
A. Teaching wound care to a patient
B. Organizing a community-wide flu immunization clinic
C. Helping one family obtain insurance
D. Administering meds in a hospital
Population-focused interventions address health at the community or
group level.
9. A nurse identifies an outbreak of food poisoning after a local event.
What is the first action?
A. Treat affected individuals
B. Notify local health department
C. Collect food samples
D. Write a report
Outbreaks must be reported promptly to public health authorities for
investigation and control.
10. The nurse is using the Omaha System. What is this primarily
used for?
A. Billing patients
B. Conducting autopsies
C. Documenting and evaluating community health interventions
D. Coding surgical procedures
Population-Focused Nursing OA Exam 1
QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) PLUS RATIONALES
2025
1. A nurse is developing a program to reduce obesity in a local
community. Which level of prevention is this?
A. Tertiary prevention
B. Secondary prevention
C. Primary prevention
D. Restorative prevention
Primary prevention aims to prevent disease before it occurs. A
weight reduction program promotes health and prevents obesity-
related complications.
,2. Which federal program provides health insurance for individuals aged
65 and older?
A. Medicaid
B. Medicare
C. CHIP
D. Affordable Care Act
Medicare is the federal health insurance program for people 65+,
certain younger people with disabilities, and ESRD patients.
3. A nurse is using the epidemiological triangle. What does this model
include?
A. Host, Environment, Provider
B. Host, Agent, Environment
C. Person, Place, Time
D. Risk, Exposure, Disease
The epidemiological triangle consists of host, agent, and
environment, used to understand disease causation.
4. The community health nurse is screening for tuberculosis. What level
of prevention is this?
A. Primary
B. Secondary
C. Tertiary
D. Quaternary
, Secondary prevention focuses on early disease detection and
intervention, like screening for TB.
5. Which describes the primary goal of case management?
A. Increase hospital admissions
B. Control provider access
C. Coordinate cost-effective care
D. Reduce nursing autonomy
Case management ensures cost-effective and coordinated care
across services for improved outcomes.
6. A school nurse notices increased absenteeism due to asthma. What is
the next best action?
A. Call parents individually
B. Collaborate with local health providers for an asthma education
program
C. Refer to child protective services
D. Ignore unless it exceeds 10 days
Collaboration and education address the root cause, improving
attendance and asthma control.
7. What is the main goal of Healthy People 2030?
A. Increase private insurance enrollment
B. Improve health and reduce health disparities
C. Focus solely on chronic diseases
D. Limit public health interventions
, Healthy People 2030 promotes health and well-being and aims to
eliminate health disparities.
8. What is an example of a population-focused intervention?
A. Teaching wound care to a patient
B. Organizing a community-wide flu immunization clinic
C. Helping one family obtain insurance
D. Administering meds in a hospital
Population-focused interventions address health at the community or
group level.
9. A nurse identifies an outbreak of food poisoning after a local event.
What is the first action?
A. Treat affected individuals
B. Notify local health department
C. Collect food samples
D. Write a report
Outbreaks must be reported promptly to public health authorities for
investigation and control.
10. The nurse is using the Omaha System. What is this primarily
used for?
A. Billing patients
B. Conducting autopsies
C. Documenting and evaluating community health interventions
D. Coding surgical procedures
