WGU D450 – Community Health and
Population-Focused Nursing Exam
Questions and Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf.
1. A community health nurse is planning interventions to reduce the
incidence of type 2 diabetes in a rural population. Which
intervention is considered primary prevention?
A. Conducting annual blood glucose screenings for adults over age 45
B. Teaching healthy nutrition and physical activity in community centers
C. Referring clients with diabetes to endocrinology specialists
D. Providing wound care for clients with diabetic foot ulcers
Correct Answer: B. Teaching healthy nutrition and physical activity in
community centers
Rationale: Primary prevention aims to prevent disease before it occurs
by reducing risk factors and promoting healthy behaviors. Education on
nutrition, physical activity, and weight management decreases the
likelihood of developing type 2 diabetes. Blood glucose screenings
represent secondary prevention through early detection, while specialist
,referrals and wound care are examples of tertiary prevention that focus
on disease management and complication reduction.
2. A public health nurse is assessing a neighborhood's health needs.
Which source provides the most useful population-level data?
A. Individual medical records
B. Community health assessment reports
C. Hospital discharge summaries
D. Client satisfaction surveys
Correct Answer: B. Community health assessment reports
Rationale: Community health assessment reports compile demographic,
epidemiologic, environmental, and socioeconomic data to identify
population health trends and priorities. These reports guide public
health planning and resource allocation. Individual records and
discharge summaries provide clinical information about specific patients
rather than the overall community, while satisfaction surveys evaluate
healthcare experiences rather than population health.
3. Which action best demonstrates the role of a community health
nurse as an advocate?
A. Administering immunizations
B. Teaching medication administration
C. Lobbying for clean drinking water legislation
,D. Recording vital signs
Correct Answer: C. Lobbying for clean drinking water legislation
Rationale: Advocacy involves influencing policies and systems that
improve community health. Supporting legislation for safe drinking
water addresses a major environmental determinant of health and
benefits entire populations. Immunizations, education, and assessments
are valuable nursing interventions but do not directly represent policy
advocacy.
4. A nurse is evaluating social determinants of health. Which factor is
considered a social determinant?
A. Blood pressure
B. Genetic mutation
C. Access to affordable housing
D. White blood cell count
Correct Answer: C. Access to affordable housing
Rationale: Social determinants of health include conditions in which
people are born, live, work, learn, and age. Stable housing significantly
affects health outcomes by influencing safety, sanitation, stress, and
access to healthcare. Blood pressure, laboratory findings, and genetic
mutations are biological or clinical factors rather than social
determinants.
, 5. During a disaster response, which client should receive the highest
priority according to triage principles?
A. Client with a minor ankle sprain
B. Client with superficial abrasions
C. Client with airway obstruction
D. Client with a stable wrist fracture
Correct Answer: C. Client with airway obstruction
Rationale: Disaster triage prioritizes clients with life-threatening but
potentially treatable conditions. Airway obstruction requires immediate
intervention to prevent death. Minor injuries and stable fractures can
safely wait for treatment while resources are directed toward those
with critical needs.
6. Which intervention is most appropriate during the secondary
prevention stage?
A. Smoking cessation counseling
B. Mammography screening
C. Rehabilitation after stroke
D. Home hospice services
Correct Answer: B. Mammography screening
Rationale: Secondary prevention focuses on early disease detection and
prompt treatment before symptoms become severe. Mammography
identifies breast cancer at an early stage, improving treatment
Population-Focused Nursing Exam
Questions and Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf.
1. A community health nurse is planning interventions to reduce the
incidence of type 2 diabetes in a rural population. Which
intervention is considered primary prevention?
A. Conducting annual blood glucose screenings for adults over age 45
B. Teaching healthy nutrition and physical activity in community centers
C. Referring clients with diabetes to endocrinology specialists
D. Providing wound care for clients with diabetic foot ulcers
Correct Answer: B. Teaching healthy nutrition and physical activity in
community centers
Rationale: Primary prevention aims to prevent disease before it occurs
by reducing risk factors and promoting healthy behaviors. Education on
nutrition, physical activity, and weight management decreases the
likelihood of developing type 2 diabetes. Blood glucose screenings
represent secondary prevention through early detection, while specialist
,referrals and wound care are examples of tertiary prevention that focus
on disease management and complication reduction.
2. A public health nurse is assessing a neighborhood's health needs.
Which source provides the most useful population-level data?
A. Individual medical records
B. Community health assessment reports
C. Hospital discharge summaries
D. Client satisfaction surveys
Correct Answer: B. Community health assessment reports
Rationale: Community health assessment reports compile demographic,
epidemiologic, environmental, and socioeconomic data to identify
population health trends and priorities. These reports guide public
health planning and resource allocation. Individual records and
discharge summaries provide clinical information about specific patients
rather than the overall community, while satisfaction surveys evaluate
healthcare experiences rather than population health.
3. Which action best demonstrates the role of a community health
nurse as an advocate?
A. Administering immunizations
B. Teaching medication administration
C. Lobbying for clean drinking water legislation
,D. Recording vital signs
Correct Answer: C. Lobbying for clean drinking water legislation
Rationale: Advocacy involves influencing policies and systems that
improve community health. Supporting legislation for safe drinking
water addresses a major environmental determinant of health and
benefits entire populations. Immunizations, education, and assessments
are valuable nursing interventions but do not directly represent policy
advocacy.
4. A nurse is evaluating social determinants of health. Which factor is
considered a social determinant?
A. Blood pressure
B. Genetic mutation
C. Access to affordable housing
D. White blood cell count
Correct Answer: C. Access to affordable housing
Rationale: Social determinants of health include conditions in which
people are born, live, work, learn, and age. Stable housing significantly
affects health outcomes by influencing safety, sanitation, stress, and
access to healthcare. Blood pressure, laboratory findings, and genetic
mutations are biological or clinical factors rather than social
determinants.
, 5. During a disaster response, which client should receive the highest
priority according to triage principles?
A. Client with a minor ankle sprain
B. Client with superficial abrasions
C. Client with airway obstruction
D. Client with a stable wrist fracture
Correct Answer: C. Client with airway obstruction
Rationale: Disaster triage prioritizes clients with life-threatening but
potentially treatable conditions. Airway obstruction requires immediate
intervention to prevent death. Minor injuries and stable fractures can
safely wait for treatment while resources are directed toward those
with critical needs.
6. Which intervention is most appropriate during the secondary
prevention stage?
A. Smoking cessation counseling
B. Mammography screening
C. Rehabilitation after stroke
D. Home hospice services
Correct Answer: B. Mammography screening
Rationale: Secondary prevention focuses on early disease detection and
prompt treatment before symptoms become severe. Mammography
identifies breast cancer at an early stage, improving treatment
