,WGU D450 Community Health and Population-Focused Nursing Objective
Assessment (OA) – Questions and Answers | 2026 Update | 100% Correct.
1. A community health nurse is planning a health promotion
program for adolescents. Which intervention is considered
primary prevention?
A. Blood pressure screening
B. Diabetes management classes
C. Immunization clinic
D. Physical therapy after injury
Answer: C. Immunization clinic
Rationale:
Primary prevention aims to prevent disease before it occurs through health promotion and
protection measures such as vaccines, nutrition education, and exercise programs.
2. Which action by the nurse represents secondary
prevention?
A. Teaching smoking cessation
B. Mammogram screening
C. Rehabilitation after stroke
D. Hospice referral
Answer: B. Mammogram screening
Rationale:
Secondary prevention focuses on early detection and treatment of disease to reduce
complications.
3. A nurse providing rehabilitation services to stroke
patients is participating in which level of prevention?
,A. Primary
B. Secondary
C. Tertiary
D. Primordial
Answer: C. Tertiary
Rationale:
Tertiary prevention minimizes disability and restores function after disease or injury has
occurred.
4. Which factor is considered a social determinant of health?
A. Blood type
B. Genetics
C. Housing stability
D. Eye color
Answer: C. Housing stability
Rationale:
Social determinants include environmental and socioeconomic conditions affecting health
outcomes.
5. Which population is considered most vulnerable?
A. Healthy adults
B. Individuals with stable income
C. Homeless populations
D. College students
Answer: C. Homeless populations
Rationale:
Homeless individuals often experience limited access to healthcare, poor nutrition, and increased
disease exposure.
, 6. During a disaster triage situation, which client should
receive care FIRST?
A. Minor laceration
B. Pulseless victim
C. Respiratory distress with airway obstruction
D. Sprained ankle
Answer: C. Respiratory distress with airway obstruction
Rationale:
Disaster triage prioritizes clients with life-threatening but treatable conditions.
7. Which statement best describes epidemiology?
A. Treatment of chronic illness
B. Study of disease distribution and determinants
C. Hospital budgeting process
D. Development of surgical procedures
Answer: B. Study of disease distribution and determinants
Rationale:
Epidemiology examines patterns, causes, and control of diseases in populations.
8. Which component is part of the epidemiological triangle?
A. Genetics
B. Insurance status
C. Agent
D. Rehabilitation
Answer: C. Agent
Rationale:
The epidemiological triangle includes agent, host, and environment.
Assessment (OA) – Questions and Answers | 2026 Update | 100% Correct.
1. A community health nurse is planning a health promotion
program for adolescents. Which intervention is considered
primary prevention?
A. Blood pressure screening
B. Diabetes management classes
C. Immunization clinic
D. Physical therapy after injury
Answer: C. Immunization clinic
Rationale:
Primary prevention aims to prevent disease before it occurs through health promotion and
protection measures such as vaccines, nutrition education, and exercise programs.
2. Which action by the nurse represents secondary
prevention?
A. Teaching smoking cessation
B. Mammogram screening
C. Rehabilitation after stroke
D. Hospice referral
Answer: B. Mammogram screening
Rationale:
Secondary prevention focuses on early detection and treatment of disease to reduce
complications.
3. A nurse providing rehabilitation services to stroke
patients is participating in which level of prevention?
,A. Primary
B. Secondary
C. Tertiary
D. Primordial
Answer: C. Tertiary
Rationale:
Tertiary prevention minimizes disability and restores function after disease or injury has
occurred.
4. Which factor is considered a social determinant of health?
A. Blood type
B. Genetics
C. Housing stability
D. Eye color
Answer: C. Housing stability
Rationale:
Social determinants include environmental and socioeconomic conditions affecting health
outcomes.
5. Which population is considered most vulnerable?
A. Healthy adults
B. Individuals with stable income
C. Homeless populations
D. College students
Answer: C. Homeless populations
Rationale:
Homeless individuals often experience limited access to healthcare, poor nutrition, and increased
disease exposure.
, 6. During a disaster triage situation, which client should
receive care FIRST?
A. Minor laceration
B. Pulseless victim
C. Respiratory distress with airway obstruction
D. Sprained ankle
Answer: C. Respiratory distress with airway obstruction
Rationale:
Disaster triage prioritizes clients with life-threatening but treatable conditions.
7. Which statement best describes epidemiology?
A. Treatment of chronic illness
B. Study of disease distribution and determinants
C. Hospital budgeting process
D. Development of surgical procedures
Answer: B. Study of disease distribution and determinants
Rationale:
Epidemiology examines patterns, causes, and control of diseases in populations.
8. Which component is part of the epidemiological triangle?
A. Genetics
B. Insurance status
C. Agent
D. Rehabilitation
Answer: C. Agent
Rationale:
The epidemiological triangle includes agent, host, and environment.
