WGU D450 COMMUNITY HEALTH AND
POPULATION-FOCUSED NURSING 200-
QUESTION PRACTICE EXAM WITH
RATIONALES A+ ALREADY GRADED
(2026-2027)
Questions 1–25
1. Which intervention is considered primary prevention?
A. Mammography screening B. Rehabilitation after stroke C. Childhood immunizations D.
Physical therapy after injury
Correct Answer: C. Childhood immunizations
Rationale: Primary prevention aims to prevent disease before it occurs. Immunizations
protect individuals from developing infectious diseases.
2. A nurse is conducting blood pressure screenings at a community fair. This is
an example of:
A. Primary prevention B. Secondary prevention C. Tertiary prevention D. Restorative care
Correct Answer: B. Secondary prevention
Rationale: Secondary prevention focuses on early detection and treatment of disease
before complications occur.
3. Which statement best describes tertiary prevention?
A. Preventing disease occurrence B. Screening for disease C. Limiting disability from
disease D. Promoting healthy lifestyle habits
Correct Answer: C. Limiting disability from disease
, Rationale: Tertiary prevention reduces complications and improves quality of life after
disease diagnosis.
4. Incidence refers to:
A. Total number of cases in a population B. Number of deaths from a disease C. New cases
occurring during a time period D. Risk factors associated with disease
Correct Answer: C. New cases occurring during a time period
Rationale: Incidence measures newly diagnosed cases within a specified time frame.
5. Prevalence measures:
A. New cases only B. Existing cases in a population C. Mortality rate D. Transmission rate
Correct Answer: B. Existing cases in a population
Rationale: Prevalence includes all existing cases at a particular point in time.
6. Which factor is considered a social determinant of health?
A. Blood type B. Genetic mutation C. Access to transportation D. Age
Correct Answer: C. Access to transportation
Rationale: Social determinants include environmental and societal conditions influencing
health outcomes.
7. A community health nurse prioritizes interventions based on:
A. Physician requests B. Community needs assessment C. Insurance reimbursement D.
Hospital policies
Correct Answer: B. Community needs assessment
Rationale: Effective community interventions are guided by identified community needs.
8. Which population is considered vulnerable?
A. Healthy young adults B. Individuals with stable employment C. Homeless individuals D.
College graduates
POPULATION-FOCUSED NURSING 200-
QUESTION PRACTICE EXAM WITH
RATIONALES A+ ALREADY GRADED
(2026-2027)
Questions 1–25
1. Which intervention is considered primary prevention?
A. Mammography screening B. Rehabilitation after stroke C. Childhood immunizations D.
Physical therapy after injury
Correct Answer: C. Childhood immunizations
Rationale: Primary prevention aims to prevent disease before it occurs. Immunizations
protect individuals from developing infectious diseases.
2. A nurse is conducting blood pressure screenings at a community fair. This is
an example of:
A. Primary prevention B. Secondary prevention C. Tertiary prevention D. Restorative care
Correct Answer: B. Secondary prevention
Rationale: Secondary prevention focuses on early detection and treatment of disease
before complications occur.
3. Which statement best describes tertiary prevention?
A. Preventing disease occurrence B. Screening for disease C. Limiting disability from
disease D. Promoting healthy lifestyle habits
Correct Answer: C. Limiting disability from disease
, Rationale: Tertiary prevention reduces complications and improves quality of life after
disease diagnosis.
4. Incidence refers to:
A. Total number of cases in a population B. Number of deaths from a disease C. New cases
occurring during a time period D. Risk factors associated with disease
Correct Answer: C. New cases occurring during a time period
Rationale: Incidence measures newly diagnosed cases within a specified time frame.
5. Prevalence measures:
A. New cases only B. Existing cases in a population C. Mortality rate D. Transmission rate
Correct Answer: B. Existing cases in a population
Rationale: Prevalence includes all existing cases at a particular point in time.
6. Which factor is considered a social determinant of health?
A. Blood type B. Genetic mutation C. Access to transportation D. Age
Correct Answer: C. Access to transportation
Rationale: Social determinants include environmental and societal conditions influencing
health outcomes.
7. A community health nurse prioritizes interventions based on:
A. Physician requests B. Community needs assessment C. Insurance reimbursement D.
Hospital policies
Correct Answer: B. Community needs assessment
Rationale: Effective community interventions are guided by identified community needs.
8. Which population is considered vulnerable?
A. Healthy young adults B. Individuals with stable employment C. Homeless individuals D.
College graduates
