1
2025 ATI RN Community Health Proctored
Retake Exam – 70 Authentic NGN Questions
with 100% Verified Answers & Detailed
Community Nursing Rationales | A+ Graded
Student Name: _________________________
Date: _______________
Time Limit: 60 minutes
Total Questions: 65
Epidemiology (17 questions)
Question 1: A community health nurse is investigating an outbreak of hepatitis A. Which action
should the nurse take first to identify the source?
A) Administer hepatitis A vaccines to the community.
B) Identify restaurants where affected clients recently ate.
C) Conduct blood tests on all community members.
D) Distribute educational flyers on handwashing.
Correct Answer: B) Identify restaurants where affected clients recently ate.
Rationale: The first step in an epidemiological investigation is to identify the source of the
outbreak by collecting data on common exposures, such as food sources. Identifying restaurants
helps pinpoint the contamination source. Vaccination (A) and education (D) are secondary, and
mass blood testing (C) is impractical initially.
Question 2: Which measure determines the country with the most people living with
Alzheimer’s disease?
A) Descriptive epidemiology
B) Analytic epidemiology
C) Experimental epidemiology
D) Clinical epidemiology
Correct Answer: B) Analytic epidemiology
Rationale: Analytic epidemiology compares groups to identify disease prevalence and risk
factors, suitable for determining Alzheimer’s prevalence across countries. Descriptive
epidemiology (A) focuses on patterns, experimental (C) tests interventions, and clinical (D)
addresses individual diagnoses.
Question 3: A nurse is analyzing health disparities in a community. Which intervention
addresses disparities based on epidemiological data?
, 2
A) Offering free flu shots annually
B) Providing culturally sensitive health education
C) Increasing hospital bed capacity
D) Distributing free water filters
Correct Answer: B) Providing culturally sensitive health education
Rationale: Epidemiological data often reveal disparities due to cultural or socioeconomic
factors. Culturally sensitive education addresses these by improving access and understanding.
Flu shots (A) and water filters (D) are specific interventions, and bed capacity (C) is unrelated
to disparities.
Question 4: A nurse is tracking a measles outbreak. Which component of the epidemiology
triangle should the nurse assess first?
A) Host
B) Agent
C) Environment
D) Vector
Correct Answer: B) Agent
Rationale: The epidemiology triangle includes agent, host, and environment. Identifying the
agent (measles virus) is the first step to confirm the disease and guide interventions. Host (A),
environment (C), and vector (D) are assessed subsequently.
Question 5: Which data indicates the incidence of a disease?
A) Total cases in a population over a year
B) New cases in a population over a month
C) Existing cases in a population at one time
D) Deaths caused by the disease annually
Correct Answer: B) New cases in a population over a month
Rationale: Incidence measures new cases of a disease in a specific period. Total cases (A)
include prevalence, existing cases (C) reflect prevalence, and deaths (D) indicate mortality, not
incidence.
Question 6: A nurse is conducting a community-level investigation of a flu outbreak. Which
step should be taken first?
A) Implement quarantine measures
B) Review community-specific epidemiological data
C) Distribute antiviral medications
D) Close local schools
Correct Answer: B) Review community-specific epidemiological data
Rationale: Reviewing epidemiological data is the first step in the nursing process for outbreak
investigation, identifying patterns and sources. Quarantine (A), medications (C), and school
closures (D) follow data analysis.
, 3
Question 7: A nurse identifies a cluster of salmonella cases. Which action best supports
outbreak control?
A) Trace food sources consumed by affected individuals
B) Administer antibiotics to all community members
C) Conduct random water quality tests
D) Educate on handwashing only
Correct Answer: A) Trace food sources consumed by affected individuals
Rationale: Salmonella is often foodborne, so tracing food sources identifies the outbreak’s
origin. Antibiotics (B) are not universally indicated, water tests (C) are less relevant, and
education (D) is secondary.
Question 8: Which finding indicates a positive tuberculin skin test in an HIV-positive client?
A) Erythema of 5 mm
B) Induration of 8 mm
C) Swelling of 10 mm
D) Redness of 12 mm
Correct Answer: B) Induration of 8 mm
Rationale: In HIV-positive clients, a tuberculin skin test is positive with induration ≥5 mm due to
immunosuppression. Induration of 8 mm (B) meets this criterion. Erythema (A, D) and swelling
(C) are not diagnostic.
Question 9: A nurse is assessing the spread of a disease. Which term describes the total number
of cases in a population at a given time?
A) Incidence
B) Prevalence
C) Morbidity
D) Mortality
Correct Answer: B) Prevalence
Rationale: Prevalence measures all cases (new and existing) in a population at a given time.
Incidence (A) counts new cases, morbidity (C) refers to disease impact, and mortality (D) counts
deaths.
Question 10: A nurse is investigating a cholera outbreak. Which environmental factor should be
assessed first?
A) Air quality
B) Water supply
C) Noise pollution
D) Housing conditions
Correct Answer: B) Water supply
Rationale: Cholera is primarily waterborne, so assessing the water supply is critical to identify
contamination. Other factors (A, C, D) are less relevant to cholera transmission.
2025 ATI RN Community Health Proctored
Retake Exam – 70 Authentic NGN Questions
with 100% Verified Answers & Detailed
Community Nursing Rationales | A+ Graded
Student Name: _________________________
Date: _______________
Time Limit: 60 minutes
Total Questions: 65
Epidemiology (17 questions)
Question 1: A community health nurse is investigating an outbreak of hepatitis A. Which action
should the nurse take first to identify the source?
A) Administer hepatitis A vaccines to the community.
B) Identify restaurants where affected clients recently ate.
C) Conduct blood tests on all community members.
D) Distribute educational flyers on handwashing.
Correct Answer: B) Identify restaurants where affected clients recently ate.
Rationale: The first step in an epidemiological investigation is to identify the source of the
outbreak by collecting data on common exposures, such as food sources. Identifying restaurants
helps pinpoint the contamination source. Vaccination (A) and education (D) are secondary, and
mass blood testing (C) is impractical initially.
Question 2: Which measure determines the country with the most people living with
Alzheimer’s disease?
A) Descriptive epidemiology
B) Analytic epidemiology
C) Experimental epidemiology
D) Clinical epidemiology
Correct Answer: B) Analytic epidemiology
Rationale: Analytic epidemiology compares groups to identify disease prevalence and risk
factors, suitable for determining Alzheimer’s prevalence across countries. Descriptive
epidemiology (A) focuses on patterns, experimental (C) tests interventions, and clinical (D)
addresses individual diagnoses.
Question 3: A nurse is analyzing health disparities in a community. Which intervention
addresses disparities based on epidemiological data?
, 2
A) Offering free flu shots annually
B) Providing culturally sensitive health education
C) Increasing hospital bed capacity
D) Distributing free water filters
Correct Answer: B) Providing culturally sensitive health education
Rationale: Epidemiological data often reveal disparities due to cultural or socioeconomic
factors. Culturally sensitive education addresses these by improving access and understanding.
Flu shots (A) and water filters (D) are specific interventions, and bed capacity (C) is unrelated
to disparities.
Question 4: A nurse is tracking a measles outbreak. Which component of the epidemiology
triangle should the nurse assess first?
A) Host
B) Agent
C) Environment
D) Vector
Correct Answer: B) Agent
Rationale: The epidemiology triangle includes agent, host, and environment. Identifying the
agent (measles virus) is the first step to confirm the disease and guide interventions. Host (A),
environment (C), and vector (D) are assessed subsequently.
Question 5: Which data indicates the incidence of a disease?
A) Total cases in a population over a year
B) New cases in a population over a month
C) Existing cases in a population at one time
D) Deaths caused by the disease annually
Correct Answer: B) New cases in a population over a month
Rationale: Incidence measures new cases of a disease in a specific period. Total cases (A)
include prevalence, existing cases (C) reflect prevalence, and deaths (D) indicate mortality, not
incidence.
Question 6: A nurse is conducting a community-level investigation of a flu outbreak. Which
step should be taken first?
A) Implement quarantine measures
B) Review community-specific epidemiological data
C) Distribute antiviral medications
D) Close local schools
Correct Answer: B) Review community-specific epidemiological data
Rationale: Reviewing epidemiological data is the first step in the nursing process for outbreak
investigation, identifying patterns and sources. Quarantine (A), medications (C), and school
closures (D) follow data analysis.
, 3
Question 7: A nurse identifies a cluster of salmonella cases. Which action best supports
outbreak control?
A) Trace food sources consumed by affected individuals
B) Administer antibiotics to all community members
C) Conduct random water quality tests
D) Educate on handwashing only
Correct Answer: A) Trace food sources consumed by affected individuals
Rationale: Salmonella is often foodborne, so tracing food sources identifies the outbreak’s
origin. Antibiotics (B) are not universally indicated, water tests (C) are less relevant, and
education (D) is secondary.
Question 8: Which finding indicates a positive tuberculin skin test in an HIV-positive client?
A) Erythema of 5 mm
B) Induration of 8 mm
C) Swelling of 10 mm
D) Redness of 12 mm
Correct Answer: B) Induration of 8 mm
Rationale: In HIV-positive clients, a tuberculin skin test is positive with induration ≥5 mm due to
immunosuppression. Induration of 8 mm (B) meets this criterion. Erythema (A, D) and swelling
(C) are not diagnostic.
Question 9: A nurse is assessing the spread of a disease. Which term describes the total number
of cases in a population at a given time?
A) Incidence
B) Prevalence
C) Morbidity
D) Mortality
Correct Answer: B) Prevalence
Rationale: Prevalence measures all cases (new and existing) in a population at a given time.
Incidence (A) counts new cases, morbidity (C) refers to disease impact, and mortality (D) counts
deaths.
Question 10: A nurse is investigating a cholera outbreak. Which environmental factor should be
assessed first?
A) Air quality
B) Water supply
C) Noise pollution
D) Housing conditions
Correct Answer: B) Water supply
Rationale: Cholera is primarily waterborne, so assessing the water supply is critical to identify
contamination. Other factors (A, C, D) are less relevant to cholera transmission.
