, ATI RN COMMUNITY HEALTH CMS
EXAM QUESTIONS AND CORRECT
ANSWERS WITH RATIONALE
2026/2027 GUARANTEED PASS
Question 1
A public health nurse is planning community interventions using
an epidemiological model. Which of the following examples
represents the host in the epidemiological triangle?
A. Salmonella bacteria contaminating a local restaurant's
food supply
B. High ambient humidity and stagnant water following a
flood
C. An older adult client who is immunocompromised
D. The transmission vector of mosquitoes in a rural county
Correct Answer: C
Rationale: In the epidemiological triangle (host, agent,
environment), the host is the susceptible human or animal that
harbors and can be affected by an infectious agent. The bacteria
represent the agent, stagnant water and humidity represent the
environment, and mosquitoes act as a vector.
Question 2
A home health nurse is conducting an environmental risk
assessment in an older adult client's home. Which of the
following findings poses the greatest immediate safety hazard?
, A. Low-pile wall-to-wall carpeting in the living room
B. Extension cords running underneath area rugs
C. A well-lit stairway with a handrail on one side
D. A bathroom equipped with a raised toilet seat
Correct Answer: B
Rationale: Running electrical extension cords underneath
area rugs creates a major tripping hazard and a significant
electrical fire hazard. The other options are either safe or
represent safety accommodations.
Question 3
A public health nurse is preparing an educational program on
primary prevention measures for a community center. Which of
the following interventions should the nurse include?
A. Administering the annual influenza vaccine to
community members
B. Performing blood pressure screenings at a health fair
C. Providing diabetes management education for newly
diagnosed clients
D. Referring a client who had a stroke to physical therapy
Correct Answer: A
Rationale: Primary prevention measures aim to prevent
health problems before they occur; immunization is a
classic example. Blood pressure screenings are secondary
prevention (early detection), while diabetes management
and physical therapy rehabilitation are tertiary prevention
(limiting disability and restoring function).
, Question 4
A nurse in a rural community is assessing the health needs of the
population. Which of the following characteristics is typically
associated with rural populations compared to urban
populations?
A. Greater availability of specialized medical subspecialists
B. Higher rates of health insurance coverage and lower
poverty
C. Increased risk of occupational injuries and machinery
accidents
D. Greater access to public mass transit and healthcare
facilities
Correct Answer: C
Rationale: Rural populations experience higher rates of
occupational hazards—such as farming, mining, and
logging accidents—along with lower average incomes,
higher rates of underinsurance, and geographic barriers to
care.
Question 5
A community health nurse is investigating an outbreak of
foodborne illness at a local community picnic. After identifying
the source of the outbreak, which of the following actions
should the nurse take next as part of the epidemiological
investigation process?
A. Formulate hypotheses regarding the mode of
transmission.
EXAM QUESTIONS AND CORRECT
ANSWERS WITH RATIONALE
2026/2027 GUARANTEED PASS
Question 1
A public health nurse is planning community interventions using
an epidemiological model. Which of the following examples
represents the host in the epidemiological triangle?
A. Salmonella bacteria contaminating a local restaurant's
food supply
B. High ambient humidity and stagnant water following a
flood
C. An older adult client who is immunocompromised
D. The transmission vector of mosquitoes in a rural county
Correct Answer: C
Rationale: In the epidemiological triangle (host, agent,
environment), the host is the susceptible human or animal that
harbors and can be affected by an infectious agent. The bacteria
represent the agent, stagnant water and humidity represent the
environment, and mosquitoes act as a vector.
Question 2
A home health nurse is conducting an environmental risk
assessment in an older adult client's home. Which of the
following findings poses the greatest immediate safety hazard?
, A. Low-pile wall-to-wall carpeting in the living room
B. Extension cords running underneath area rugs
C. A well-lit stairway with a handrail on one side
D. A bathroom equipped with a raised toilet seat
Correct Answer: B
Rationale: Running electrical extension cords underneath
area rugs creates a major tripping hazard and a significant
electrical fire hazard. The other options are either safe or
represent safety accommodations.
Question 3
A public health nurse is preparing an educational program on
primary prevention measures for a community center. Which of
the following interventions should the nurse include?
A. Administering the annual influenza vaccine to
community members
B. Performing blood pressure screenings at a health fair
C. Providing diabetes management education for newly
diagnosed clients
D. Referring a client who had a stroke to physical therapy
Correct Answer: A
Rationale: Primary prevention measures aim to prevent
health problems before they occur; immunization is a
classic example. Blood pressure screenings are secondary
prevention (early detection), while diabetes management
and physical therapy rehabilitation are tertiary prevention
(limiting disability and restoring function).
, Question 4
A nurse in a rural community is assessing the health needs of the
population. Which of the following characteristics is typically
associated with rural populations compared to urban
populations?
A. Greater availability of specialized medical subspecialists
B. Higher rates of health insurance coverage and lower
poverty
C. Increased risk of occupational injuries and machinery
accidents
D. Greater access to public mass transit and healthcare
facilities
Correct Answer: C
Rationale: Rural populations experience higher rates of
occupational hazards—such as farming, mining, and
logging accidents—along with lower average incomes,
higher rates of underinsurance, and geographic barriers to
care.
Question 5
A community health nurse is investigating an outbreak of
foodborne illness at a local community picnic. After identifying
the source of the outbreak, which of the following actions
should the nurse take next as part of the epidemiological
investigation process?
A. Formulate hypotheses regarding the mode of
transmission.
