The Ultimate and Complete ATI RN Community Health CMS Study Guide 2025–
2026, Covering Community and Public Health Nursing Principles, Health
Promotion and Disease Prevention Strategies, Epidemiology and Population
Health Management, Communicable Disease Control and Infection Prevention,
Environmental and Occupational Health Nursing, Disaster Preparedness and
Emergency Response Planning, Vulnerable and At-Risk Population Care, Home
Health and Community-Based Nursing Services, Health Education and Patient
Advocacy, Leadership and Case Management in Community Health Nursing,
ATI Community Health Practice Questions with Verified Answers and Detailed
Rationales, Real Public Health Case Studies, Step-by-Step Community
Assessment Frameworks, and Proven Strategies to Successfully Pass the ATI
RN Community Health CMS Examination
Question 1: A community health nurse is analyzing the mortality data of a specific county and
calculates the infant mortality rate. Which of the following formulas should the nurse use to
calculate this rate?
A. Number of infant deaths under 1 year per 1,000 live births in a given year B. Number of
infant deaths under 1 year per 100,000 live births in a given year C. Number of fetal deaths
after 20 weeks per 1,000 live births in a given year D. Number of neonatal deaths under 28 days
per 10,000 live births in a given year
CORRECT ANSWER: A. Number of infant deaths under 1 year per 1,000 live births in a given
year
Rationale: The infant mortality rate is a key indicator of the overall health status of a
community, calculated by dividing the number of infant deaths before their first birthday by the
number of live births in the same year, multiplied by 1,000.
Question 2: A public health nurse is implementing a tertiary prevention strategy for clients
with tuberculosis (TB). Which of the following actions should the nurse take?
A. Administer the BCG vaccine to high-risk infants B. Conduct contact tracing for clients
diagnosed with active TB C. Provide directly observed therapy (DOT) for clients on anti-TB
medications D. Screen migrant workers for TB using a tuberculin skin test
CORRECT ANSWER: C. Provide directly observed therapy (DOT) for clients on anti-TB
medications
Rationale: Tertiary prevention aims to reduce the impact of an already established disease by
restoring function and reducing disease-related complications. DOT ensures adherence to the
,medication regimen, preventing drug resistance and promoting recovery. Screening and
contact tracing are secondary prevention, and vaccination is primary prevention.
Question 3: A community health nurse is preparing a presentation on primary prevention for
a local community group. Which of the following activities should the nurse include as an
example of primary prevention?
A. Providing a support group for clients recovering from stroke B. Teaching a class on proper
hand hygiene to elementary school students C. Conducting mammography screenings for
women over the age of 50 D. Administering physical therapy to a client with a traumatic brain
injury
CORRECT ANSWER: B. Teaching a class on proper hand hygiene to elementary school students
Rationale: Primary prevention aims to prevent disease or injury before it ever occurs. This is
done by preventing exposures to hazards that cause disease or injury, altering unhealthy or
unsafe behaviors that can lead to disease or injury, and increasing resistance to disease or
injury should exposure occur. Teaching hand hygiene prevents the spread of infections.
Question 4: A nurse is reviewing the health records of a community and identifies a cluster of
new cases of Lyme disease in a specific forested area. The nurse calculates the incidence rate.
What does the incidence rate measure?
A. The total number of existing cases of a disease in a population at a specific time B. The
number of new cases of a disease that develop in a population during a specific period C. The
proportion of a population that has a disease at a given point in time D. The rate of death from
a specific disease in a given population
CORRECT ANSWER: B. The number of new cases of a disease that develop in a population
during a specific period
Rationale: Incidence refers to the number or rate of new cases of a disease in a specific
population during a specified time period. Prevalence, on the other hand, refers to the total
number of existing cases (both new and old) at a specific point in time or over a period.
Question 5: A community health nurse is assessing a neighborhood with a high rate of asthma
exacerbations among children. The nurse identifies that the area is located near several
industrial factories with high emissions. This scenario is an example of which component of
the epidemiological triangle?
A. Host B. Agent C. Environment D. Vector
CORRECT ANSWER: C. Environment
Rationale: The epidemiological triangle consists of the agent, host, and environment. The
environment includes all external factors that influence the agent and the host, such as air
,quality, water, housing, and proximity to industrial pollutants, which in this case are the factory
emissions contributing to asthma.
Question 6: A public health nurse is planning a community intervention to reduce the
incidence of cardiovascular disease. According to the social-ecological model, which of the
following interventions targets the interpersonal level?
A. Implementing a policy to ban trans fats in all local restaurants B. Organizing a family-based
cooking and nutrition workshop C. Building new walking trails and parks in the community D.
Launching a mass media campaign about the dangers of smoking
CORRECT ANSWER: B. Organizing a family-based cooking and nutrition workshop
Rationale: The social-ecological model includes individual, interpersonal, organizational,
community, and public policy levels. The interpersonal level focuses on relationships and social
networks, such as family and friends. A family-based workshop targets these close relationships
to influence health behaviors.
Question 7: A nurse is conducting a windshield survey of a community. Which of the
following observations should the nurse make to assess the community's physical
environment?
A. The number of churches and community centers in the area B. The condition of the housing
and the presence of abandoned buildings C. The demographic data regarding the age and
ethnicity of the residents D. The availability of public transportation routes and schedules
CORRECT ANSWER: B. The condition of the housing and the presence of abandoned buildings
Rationale: A windshield survey is an observational assessment of a community conducted while
driving or walking through a neighborhood. Assessing the physical environment includes
observing housing conditions, infrastructure, noise levels, and the presence of abandoned
buildings or pollution. Demographic data is collected through secondary data analysis.
Question 8: A community health nurse is analyzing the prevalence of diabetes in a county.
The nurse notes that the prevalence rate is significantly higher than the incidence rate. What
does this finding most likely indicate?
A. The disease is highly fatal and has a short duration. B. New cases of the disease are occurring
very rapidly. C. People are living longer with the disease due to improved management. D.
There is a recent outbreak of the disease in the community.
CORRECT ANSWER: C. People are living longer with the disease due to improved
management.
Rationale: Prevalence is influenced by both the incidence of the disease and its duration. If the
prevalence is much higher than the incidence, it suggests that the disease is not rapidly fatal
, and that people are living longer with the condition, often due to better medical management
and treatments that prolong life without curing the disease.
Question 9: A nurse is working in a community health clinic and is required to report a case of
syphilis to the local health department. This is an example of which type of surveillance?
A. Passive surveillance B. Active surveillance C. Sentinel surveillance D. Syndromic surveillance
CORRECT ANSWER: A. Passive surveillance
Rationale: Passive surveillance relies on healthcare providers or laboratories to report cases of
specific diseases to the health department as required by law. Active surveillance involves the
health department proactively contacting healthcare providers to collect data. Sentinel
surveillance involves reporting from a selected network of reporting sites.
Question 10: A public health nurse is evaluating the effectiveness of a school-based obesity
prevention program. Which of the following data points would be the most appropriate
outcome measure for this evaluation?
A. The number of students who attended the educational seminars B. The change in the body
mass index (BMI) percentiles of the students over one year C. The amount of funding allocated
to the school's physical education department D. The number of healthy food options available
in the school cafeteria
CORRECT ANSWER: B. The change in the body mass index (BMI) percentiles of the students
over one year
Rationale: Outcome measures evaluate the actual impact or effectiveness of a program on the
target population's health status. A change in BMI percentiles directly measures the physical
health outcome of the obesity prevention program. Attendance, funding, and cafeteria options
are process or structural measures.
Question 11: A community health nurse is investigating a waterborne disease outbreak in a
rural community. Which of the following actions is the priority during the investigation?
A. Administer prophylactic antibiotics to all residents in the community B. Identify the source of
the contaminated water and implement control measures C. Conduct a door-to-door survey to
determine the total number of cases D. Educate the community on the proper handwashing
techniques
CORRECT ANSWER: B. Identify the source of the contaminated water and implement control
measures
Rationale: In an outbreak investigation, the priority is to control the spread of the disease and
protect public health. Identifying and eliminating the source of the contamination (e.g., shutting
down a contaminated well) is the most critical step to prevent further cases.
2026, Covering Community and Public Health Nursing Principles, Health
Promotion and Disease Prevention Strategies, Epidemiology and Population
Health Management, Communicable Disease Control and Infection Prevention,
Environmental and Occupational Health Nursing, Disaster Preparedness and
Emergency Response Planning, Vulnerable and At-Risk Population Care, Home
Health and Community-Based Nursing Services, Health Education and Patient
Advocacy, Leadership and Case Management in Community Health Nursing,
ATI Community Health Practice Questions with Verified Answers and Detailed
Rationales, Real Public Health Case Studies, Step-by-Step Community
Assessment Frameworks, and Proven Strategies to Successfully Pass the ATI
RN Community Health CMS Examination
Question 1: A community health nurse is analyzing the mortality data of a specific county and
calculates the infant mortality rate. Which of the following formulas should the nurse use to
calculate this rate?
A. Number of infant deaths under 1 year per 1,000 live births in a given year B. Number of
infant deaths under 1 year per 100,000 live births in a given year C. Number of fetal deaths
after 20 weeks per 1,000 live births in a given year D. Number of neonatal deaths under 28 days
per 10,000 live births in a given year
CORRECT ANSWER: A. Number of infant deaths under 1 year per 1,000 live births in a given
year
Rationale: The infant mortality rate is a key indicator of the overall health status of a
community, calculated by dividing the number of infant deaths before their first birthday by the
number of live births in the same year, multiplied by 1,000.
Question 2: A public health nurse is implementing a tertiary prevention strategy for clients
with tuberculosis (TB). Which of the following actions should the nurse take?
A. Administer the BCG vaccine to high-risk infants B. Conduct contact tracing for clients
diagnosed with active TB C. Provide directly observed therapy (DOT) for clients on anti-TB
medications D. Screen migrant workers for TB using a tuberculin skin test
CORRECT ANSWER: C. Provide directly observed therapy (DOT) for clients on anti-TB
medications
Rationale: Tertiary prevention aims to reduce the impact of an already established disease by
restoring function and reducing disease-related complications. DOT ensures adherence to the
,medication regimen, preventing drug resistance and promoting recovery. Screening and
contact tracing are secondary prevention, and vaccination is primary prevention.
Question 3: A community health nurse is preparing a presentation on primary prevention for
a local community group. Which of the following activities should the nurse include as an
example of primary prevention?
A. Providing a support group for clients recovering from stroke B. Teaching a class on proper
hand hygiene to elementary school students C. Conducting mammography screenings for
women over the age of 50 D. Administering physical therapy to a client with a traumatic brain
injury
CORRECT ANSWER: B. Teaching a class on proper hand hygiene to elementary school students
Rationale: Primary prevention aims to prevent disease or injury before it ever occurs. This is
done by preventing exposures to hazards that cause disease or injury, altering unhealthy or
unsafe behaviors that can lead to disease or injury, and increasing resistance to disease or
injury should exposure occur. Teaching hand hygiene prevents the spread of infections.
Question 4: A nurse is reviewing the health records of a community and identifies a cluster of
new cases of Lyme disease in a specific forested area. The nurse calculates the incidence rate.
What does the incidence rate measure?
A. The total number of existing cases of a disease in a population at a specific time B. The
number of new cases of a disease that develop in a population during a specific period C. The
proportion of a population that has a disease at a given point in time D. The rate of death from
a specific disease in a given population
CORRECT ANSWER: B. The number of new cases of a disease that develop in a population
during a specific period
Rationale: Incidence refers to the number or rate of new cases of a disease in a specific
population during a specified time period. Prevalence, on the other hand, refers to the total
number of existing cases (both new and old) at a specific point in time or over a period.
Question 5: A community health nurse is assessing a neighborhood with a high rate of asthma
exacerbations among children. The nurse identifies that the area is located near several
industrial factories with high emissions. This scenario is an example of which component of
the epidemiological triangle?
A. Host B. Agent C. Environment D. Vector
CORRECT ANSWER: C. Environment
Rationale: The epidemiological triangle consists of the agent, host, and environment. The
environment includes all external factors that influence the agent and the host, such as air
,quality, water, housing, and proximity to industrial pollutants, which in this case are the factory
emissions contributing to asthma.
Question 6: A public health nurse is planning a community intervention to reduce the
incidence of cardiovascular disease. According to the social-ecological model, which of the
following interventions targets the interpersonal level?
A. Implementing a policy to ban trans fats in all local restaurants B. Organizing a family-based
cooking and nutrition workshop C. Building new walking trails and parks in the community D.
Launching a mass media campaign about the dangers of smoking
CORRECT ANSWER: B. Organizing a family-based cooking and nutrition workshop
Rationale: The social-ecological model includes individual, interpersonal, organizational,
community, and public policy levels. The interpersonal level focuses on relationships and social
networks, such as family and friends. A family-based workshop targets these close relationships
to influence health behaviors.
Question 7: A nurse is conducting a windshield survey of a community. Which of the
following observations should the nurse make to assess the community's physical
environment?
A. The number of churches and community centers in the area B. The condition of the housing
and the presence of abandoned buildings C. The demographic data regarding the age and
ethnicity of the residents D. The availability of public transportation routes and schedules
CORRECT ANSWER: B. The condition of the housing and the presence of abandoned buildings
Rationale: A windshield survey is an observational assessment of a community conducted while
driving or walking through a neighborhood. Assessing the physical environment includes
observing housing conditions, infrastructure, noise levels, and the presence of abandoned
buildings or pollution. Demographic data is collected through secondary data analysis.
Question 8: A community health nurse is analyzing the prevalence of diabetes in a county.
The nurse notes that the prevalence rate is significantly higher than the incidence rate. What
does this finding most likely indicate?
A. The disease is highly fatal and has a short duration. B. New cases of the disease are occurring
very rapidly. C. People are living longer with the disease due to improved management. D.
There is a recent outbreak of the disease in the community.
CORRECT ANSWER: C. People are living longer with the disease due to improved
management.
Rationale: Prevalence is influenced by both the incidence of the disease and its duration. If the
prevalence is much higher than the incidence, it suggests that the disease is not rapidly fatal
, and that people are living longer with the condition, often due to better medical management
and treatments that prolong life without curing the disease.
Question 9: A nurse is working in a community health clinic and is required to report a case of
syphilis to the local health department. This is an example of which type of surveillance?
A. Passive surveillance B. Active surveillance C. Sentinel surveillance D. Syndromic surveillance
CORRECT ANSWER: A. Passive surveillance
Rationale: Passive surveillance relies on healthcare providers or laboratories to report cases of
specific diseases to the health department as required by law. Active surveillance involves the
health department proactively contacting healthcare providers to collect data. Sentinel
surveillance involves reporting from a selected network of reporting sites.
Question 10: A public health nurse is evaluating the effectiveness of a school-based obesity
prevention program. Which of the following data points would be the most appropriate
outcome measure for this evaluation?
A. The number of students who attended the educational seminars B. The change in the body
mass index (BMI) percentiles of the students over one year C. The amount of funding allocated
to the school's physical education department D. The number of healthy food options available
in the school cafeteria
CORRECT ANSWER: B. The change in the body mass index (BMI) percentiles of the students
over one year
Rationale: Outcome measures evaluate the actual impact or effectiveness of a program on the
target population's health status. A change in BMI percentiles directly measures the physical
health outcome of the obesity prevention program. Attendance, funding, and cafeteria options
are process or structural measures.
Question 11: A community health nurse is investigating a waterborne disease outbreak in a
rural community. Which of the following actions is the priority during the investigation?
A. Administer prophylactic antibiotics to all residents in the community B. Identify the source of
the contaminated water and implement control measures C. Conduct a door-to-door survey to
determine the total number of cases D. Educate the community on the proper handwashing
techniques
CORRECT ANSWER: B. Identify the source of the contaminated water and implement control
measures
Rationale: In an outbreak investigation, the priority is to control the spread of the disease and
protect public health. Identifying and eliminating the source of the contamination (e.g., shutting
down a contaminated well) is the most critical step to prevent further cases.
