WGU C475 – Community Health
Practicum Exam 2025/2026
Verified Questions and Answers
1. The basic cause of a disease or condition in a population is known as: Answer:
Etiology Rationale: Etiology refers to the root cause or origin of a health problem.
2. What is the formula for calculating the crude mortality rate per 1,000 population?
Answer: (Number of deaths in a year / Mid-year population) × 1,000 Rationale:
Standard epidemiologic measure of overall mortality.
3. A sudden increase in the occurrence of malaria in a previously low-incidence village is
best classified as a(n): Answer: Epidemic Rationale: Epidemic = unexpected increase
above baseline in a defined area.
4. Which measure of disease frequency uses person-time in the denominator? Answer:
Incidence rate Rationale: Incidence rate = new cases / person-time at risk.
5. The leading cause of years of potential life lost (YPLL) in the U.S. is: Answer:
Unintentional injuries Rationale: Injuries (especially motor vehicle crashes) cause
death at younger ages.
6. In the epidemiologic triangle, the “environment” includes: Answer: Physical, social,
and economic factors Rationale: Environment facilitates or inhibits disease
transmission.
7. Which level of prevention focuses on early detection and prompt treatment? Answer:
Secondary prevention Rationale: Screening and early intervention (e.g.,
mammograms, BP checks).
8. A community health nurse organizing a free hypertension screening at a church is
performing: Answer: Secondary prevention Rationale: Screening to detect disease
early.
9. Teaching new mothers about safe sleep practices to prevent SIDS is an example of:
Answer: Primary prevention Rationale: Preventing occurrence before it happens.
10.The “windshield survey” is a method used in: Answer: Community assessment
Rationale: Direct observation of the community while driving/walking through.
11.Which data source provides primary data for community assessment? Answer: Key
informant interviews Rationale: Primary = collected firsthand; secondary = existing
records.
12.The most vulnerable population for lead poisoning is: Answer: Children under 6 years
living in homes built before 1978 Rationale: Old paint + hand-to-mouth behavior =
highest risk.
13.Which group is considered a medically underserved population? Answer: Rural
residents, migrant farmworkers, homeless individuals Rationale: All face barriers to
access.
Practicum Exam 2025/2026
Verified Questions and Answers
1. The basic cause of a disease or condition in a population is known as: Answer:
Etiology Rationale: Etiology refers to the root cause or origin of a health problem.
2. What is the formula for calculating the crude mortality rate per 1,000 population?
Answer: (Number of deaths in a year / Mid-year population) × 1,000 Rationale:
Standard epidemiologic measure of overall mortality.
3. A sudden increase in the occurrence of malaria in a previously low-incidence village is
best classified as a(n): Answer: Epidemic Rationale: Epidemic = unexpected increase
above baseline in a defined area.
4. Which measure of disease frequency uses person-time in the denominator? Answer:
Incidence rate Rationale: Incidence rate = new cases / person-time at risk.
5. The leading cause of years of potential life lost (YPLL) in the U.S. is: Answer:
Unintentional injuries Rationale: Injuries (especially motor vehicle crashes) cause
death at younger ages.
6. In the epidemiologic triangle, the “environment” includes: Answer: Physical, social,
and economic factors Rationale: Environment facilitates or inhibits disease
transmission.
7. Which level of prevention focuses on early detection and prompt treatment? Answer:
Secondary prevention Rationale: Screening and early intervention (e.g.,
mammograms, BP checks).
8. A community health nurse organizing a free hypertension screening at a church is
performing: Answer: Secondary prevention Rationale: Screening to detect disease
early.
9. Teaching new mothers about safe sleep practices to prevent SIDS is an example of:
Answer: Primary prevention Rationale: Preventing occurrence before it happens.
10.The “windshield survey” is a method used in: Answer: Community assessment
Rationale: Direct observation of the community while driving/walking through.
11.Which data source provides primary data for community assessment? Answer: Key
informant interviews Rationale: Primary = collected firsthand; secondary = existing
records.
12.The most vulnerable population for lead poisoning is: Answer: Children under 6 years
living in homes built before 1978 Rationale: Old paint + hand-to-mouth behavior =
highest risk.
13.Which group is considered a medically underserved population? Answer: Rural
residents, migrant farmworkers, homeless individuals Rationale: All face barriers to
access.
