TEST BANK | WGU D583 FOUNDATIONS IN
PUBLIC HEALTH OA EXAM 2025/2026 |
VERIFIED QUESTIONS, CORRECT ANSWERS &
DETAILED RATIONALES | LATEST VERSION
TEST BANK | WGU D583 FOUNDATIONS IN PUBLIC HEALTH OA EXAM
VERIFIED QUESTIONS, CORRECT ANSWERS & DETAILED RATIONALES |
LATEST VERSION
1. Which of the following BEST defines public health?
A. The science of diagnosing and treating individual patients B. The study of
pharmacological interventions for disease management C. The science and art of
preventing disease, prolonging life, and promoting health through organized community
efforts D. The branch of medicine focused on surgical procedures E. The management
of hospital systems and clinical operations
CORRECT ANSWER: C. The science and art of preventing disease,
prolonging life, and promoting health through organized community efforts
RATIONALE: Public health is classically defined by C.E.A. Winslow as the science and
art of preventing disease, prolonging life, and promoting health through organized
community efforts. It focuses on populations, not individuals.
2. What are the three core functions of public health?
A. Prevention, Treatment, Rehabilitation B. Assessment, Policy Development,
Assurance C. Surveillance, Intervention, Evaluation D. Planning, Implementing,
Monitoring E. Diagnosis, Treatment, Follow-up
CORRECT ANSWER: B. Assessment, Policy Development, Assurance
RATIONALE: The Institute of Medicine (IOM) identified the three core functions of
public health as Assessment, Policy Development, and Assurance. These form the
foundational framework for public health practice.
3. Which core function of public health involves systematically collecting,
analyzing, and making available information on the health of a community?
A. Assurance B. Policy Development C. Assessment D. Surveillance E. Evaluation
, CORRECT ANSWER: C. Assessment RATIONALE: Assessment involves
systematically collecting, assembling, analyzing, and making available information on
the health of the community, including statistics on health status, community health
needs, and epidemiologic studies.
4. The 10 Essential Public Health Services were revised in which year to reflect
modern public health practice?
A. 2010 B. 2015 C. 2017 D. 2020 E. 2022
CORRECT ANSWER: D. 2020 RATIONALE: The 10 Essential Public Health
Services were updated in 2020 to reflect advances in public health practice, including
greater emphasis on health equity, systemic and structural barriers, and community
engagement.
5. Which essential public health service involves ensuring a competent public
health and personal healthcare workforce?
A. Monitor health status to identify community health problems B. Diagnose and
investigate health problems and hazards C. Link people to personal health services D.
Assure a competent public and personal health care workforce E. Develop policies and
plans that support individual and community health efforts
CORRECT ANSWER: D. Assure a competent public and personal health care
workforce RATIONALE: One of the 10 Essential Public Health Services is to
assure a competent public health and personal healthcare workforce through education,
training, and performance standards.
6. What is epidemiology?
A. The study of drug interactions in clinical populations B. The study of the distribution
and determinants of health-related states in specified populations and the application of
this study to control health problems C. The study of genetics and inherited diseases D.
The branch of medicine dealing with emergency care E. The management of hospital-
acquired infections
CORRECT ANSWER: B. The study of the distribution and determinants of
health-related states in specified populations and the application of this study to
control health problems RATIONALE: Epidemiology is defined as the study of the
,distribution and determinants of health-related states or events in specified populations,
and the application of this study to control health problems (John Last, Dictionary of
Epidemiology).
7. Which of the following is a measure of the frequency of new cases of a disease
occurring in a population during a specific period?
A. Prevalence B. Mortality rate C. Incidence D. Morbidity E. Attributable risk
CORRECT ANSWER: C. Incidence RATIONALE: Incidence refers to the
number of new cases of a disease occurring in a population during a defined time
period. It measures the risk of developing the disease.
8. Prevalence differs from incidence in that prevalence:
A. Measures only new cases B. Is used only for infectious diseases C. Measures all
existing cases at a point in time or over a period D. Is always lower than incidence E.
Can only be calculated for chronic diseases
CORRECT ANSWER: C. Measures all existing cases at a point in time or
over a period RATIONALE: Prevalence measures all existing cases (both new and
old) of a disease in a population at a specific point in time (point prevalence) or over a
period (period prevalence). Incidence measures only new cases.
9. In epidemiology, what does the "epidemiological triad" consist of?
A. Agent, Host, Environment B. Prevention, Treatment, Rehabilitation C. Incidence,
Prevalence, Mortality D. Person, Place, Time E. Assessment, Diagnosis, Intervention
CORRECT ANSWER: A. Agent, Host, Environment RATIONALE: The
epidemiological triad (or triangle) consists of Agent (the cause of disease), Host (the
organism harboring the disease), and Environment (external factors affecting exposure).
It forms the basis for understanding disease causation.
10. Which level of prevention focuses on early detection and prompt treatment of
disease?
A. Primordial prevention B. Primary prevention C. Secondary prevention D. Tertiary
prevention E. Quaternary prevention
, CORRECT ANSWER: C. Secondary prevention RATIONALE: Secondary
prevention focuses on early detection and prompt treatment to halt disease progression,
reduce disease duration, and prevent spread. Examples include screening programs
like mammograms and Pap smears.
11. Vaccination programs are an example of which level of prevention?
A. Primordial prevention B. Primary prevention C. Secondary prevention D. Tertiary
prevention E. Quaternary prevention
CORRECT ANSWER: B. Primary prevention RATIONALE: Primary
prevention aims to prevent disease before it occurs by reducing risk factors or
increasing resistance. Vaccination prevents infectious diseases before exposure,
making it a classic example of primary prevention.
12. Which of the following BEST describes tertiary prevention?
A. Preventing disease from occurring in the first place B. Detecting disease early before
symptoms appear C. Reducing the impact of disease and preventing further
complications D. Addressing social determinants of health E. Screening high-risk
populations
CORRECT ANSWER: C. Reducing the impact of disease and preventing
further complications RATIONALE: Tertiary prevention aims to reduce the impact
of an existing disease by managing complications, minimizing disability, and improving
quality of life. Examples include cardiac rehabilitation and diabetes management
programs.
13. The social determinants of health are BEST described as:
A. Genetic and biological factors that determine health outcomes B. The conditions in
which people are born, grow, live, work, and age C. Medical interventions available to
individuals D. The behavioral choices individuals make regarding their health E. The
psychological factors influencing patient outcomes
CORRECT ANSWER: B. The conditions in which people are born, grow, live,
work, and age RATIONALE: The WHO defines social determinants of health as the
conditions in which people are born, grow, live, work, and age, including the health
system. These circumstances are shaped by political, social, and economic forces.
PUBLIC HEALTH OA EXAM 2025/2026 |
VERIFIED QUESTIONS, CORRECT ANSWERS &
DETAILED RATIONALES | LATEST VERSION
TEST BANK | WGU D583 FOUNDATIONS IN PUBLIC HEALTH OA EXAM
VERIFIED QUESTIONS, CORRECT ANSWERS & DETAILED RATIONALES |
LATEST VERSION
1. Which of the following BEST defines public health?
A. The science of diagnosing and treating individual patients B. The study of
pharmacological interventions for disease management C. The science and art of
preventing disease, prolonging life, and promoting health through organized community
efforts D. The branch of medicine focused on surgical procedures E. The management
of hospital systems and clinical operations
CORRECT ANSWER: C. The science and art of preventing disease,
prolonging life, and promoting health through organized community efforts
RATIONALE: Public health is classically defined by C.E.A. Winslow as the science and
art of preventing disease, prolonging life, and promoting health through organized
community efforts. It focuses on populations, not individuals.
2. What are the three core functions of public health?
A. Prevention, Treatment, Rehabilitation B. Assessment, Policy Development,
Assurance C. Surveillance, Intervention, Evaluation D. Planning, Implementing,
Monitoring E. Diagnosis, Treatment, Follow-up
CORRECT ANSWER: B. Assessment, Policy Development, Assurance
RATIONALE: The Institute of Medicine (IOM) identified the three core functions of
public health as Assessment, Policy Development, and Assurance. These form the
foundational framework for public health practice.
3. Which core function of public health involves systematically collecting,
analyzing, and making available information on the health of a community?
A. Assurance B. Policy Development C. Assessment D. Surveillance E. Evaluation
, CORRECT ANSWER: C. Assessment RATIONALE: Assessment involves
systematically collecting, assembling, analyzing, and making available information on
the health of the community, including statistics on health status, community health
needs, and epidemiologic studies.
4. The 10 Essential Public Health Services were revised in which year to reflect
modern public health practice?
A. 2010 B. 2015 C. 2017 D. 2020 E. 2022
CORRECT ANSWER: D. 2020 RATIONALE: The 10 Essential Public Health
Services were updated in 2020 to reflect advances in public health practice, including
greater emphasis on health equity, systemic and structural barriers, and community
engagement.
5. Which essential public health service involves ensuring a competent public
health and personal healthcare workforce?
A. Monitor health status to identify community health problems B. Diagnose and
investigate health problems and hazards C. Link people to personal health services D.
Assure a competent public and personal health care workforce E. Develop policies and
plans that support individual and community health efforts
CORRECT ANSWER: D. Assure a competent public and personal health care
workforce RATIONALE: One of the 10 Essential Public Health Services is to
assure a competent public health and personal healthcare workforce through education,
training, and performance standards.
6. What is epidemiology?
A. The study of drug interactions in clinical populations B. The study of the distribution
and determinants of health-related states in specified populations and the application of
this study to control health problems C. The study of genetics and inherited diseases D.
The branch of medicine dealing with emergency care E. The management of hospital-
acquired infections
CORRECT ANSWER: B. The study of the distribution and determinants of
health-related states in specified populations and the application of this study to
control health problems RATIONALE: Epidemiology is defined as the study of the
,distribution and determinants of health-related states or events in specified populations,
and the application of this study to control health problems (John Last, Dictionary of
Epidemiology).
7. Which of the following is a measure of the frequency of new cases of a disease
occurring in a population during a specific period?
A. Prevalence B. Mortality rate C. Incidence D. Morbidity E. Attributable risk
CORRECT ANSWER: C. Incidence RATIONALE: Incidence refers to the
number of new cases of a disease occurring in a population during a defined time
period. It measures the risk of developing the disease.
8. Prevalence differs from incidence in that prevalence:
A. Measures only new cases B. Is used only for infectious diseases C. Measures all
existing cases at a point in time or over a period D. Is always lower than incidence E.
Can only be calculated for chronic diseases
CORRECT ANSWER: C. Measures all existing cases at a point in time or
over a period RATIONALE: Prevalence measures all existing cases (both new and
old) of a disease in a population at a specific point in time (point prevalence) or over a
period (period prevalence). Incidence measures only new cases.
9. In epidemiology, what does the "epidemiological triad" consist of?
A. Agent, Host, Environment B. Prevention, Treatment, Rehabilitation C. Incidence,
Prevalence, Mortality D. Person, Place, Time E. Assessment, Diagnosis, Intervention
CORRECT ANSWER: A. Agent, Host, Environment RATIONALE: The
epidemiological triad (or triangle) consists of Agent (the cause of disease), Host (the
organism harboring the disease), and Environment (external factors affecting exposure).
It forms the basis for understanding disease causation.
10. Which level of prevention focuses on early detection and prompt treatment of
disease?
A. Primordial prevention B. Primary prevention C. Secondary prevention D. Tertiary
prevention E. Quaternary prevention
, CORRECT ANSWER: C. Secondary prevention RATIONALE: Secondary
prevention focuses on early detection and prompt treatment to halt disease progression,
reduce disease duration, and prevent spread. Examples include screening programs
like mammograms and Pap smears.
11. Vaccination programs are an example of which level of prevention?
A. Primordial prevention B. Primary prevention C. Secondary prevention D. Tertiary
prevention E. Quaternary prevention
CORRECT ANSWER: B. Primary prevention RATIONALE: Primary
prevention aims to prevent disease before it occurs by reducing risk factors or
increasing resistance. Vaccination prevents infectious diseases before exposure,
making it a classic example of primary prevention.
12. Which of the following BEST describes tertiary prevention?
A. Preventing disease from occurring in the first place B. Detecting disease early before
symptoms appear C. Reducing the impact of disease and preventing further
complications D. Addressing social determinants of health E. Screening high-risk
populations
CORRECT ANSWER: C. Reducing the impact of disease and preventing
further complications RATIONALE: Tertiary prevention aims to reduce the impact
of an existing disease by managing complications, minimizing disability, and improving
quality of life. Examples include cardiac rehabilitation and diabetes management
programs.
13. The social determinants of health are BEST described as:
A. Genetic and biological factors that determine health outcomes B. The conditions in
which people are born, grow, live, work, and age C. Medical interventions available to
individuals D. The behavioral choices individuals make regarding their health E. The
psychological factors influencing patient outcomes
CORRECT ANSWER: B. The conditions in which people are born, grow, live,
work, and age RATIONALE: The WHO defines social determinants of health as the
conditions in which people are born, grow, live, work, and age, including the health
system. These circumstances are shaped by political, social, and economic forces.
