2023 ATI RN COMMUNITY HEALTH
PROCTORED EXAM WITH NGN ACTUAL
QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) PLUS RATIONALES
2026 Q&A | INSTANT DOWNLOAD PDF
SECTION 1: EPIDEMIOLOGY & POPULATION HEALTH
Question 1
A community health nurse is investigating an outbreak of foodborne illness at a
local restaurant. Which term describes the number of new cases in the population
during a specific time period?
A) Prevalence
B) Incidence
,C) Morbidity
D) Mortality
Correct ,,,answer,,,,: B – Incidence
Rationale: Incidence refers to the number of NEW cases of a disease occurring in a
population during a specified time period. Prevalence includes ALL cases (new and
existing). Morbidity refers to illness rates; mortality refers to death rates.
Question 2
A nurse is conducting a community assessment. Which level of prevention is being
implemented when the nurse provides influenza vaccinations at a senior center?
A) Primary prevention
B) Secondary prevention
C) Tertiary prevention
D) Health promotion
Correct ,,,answer,,,,: A – Primary prevention
Rationale: Primary prevention aims to prevent disease before it occurs.
Vaccinations are a primary prevention strategy. Secondary prevention focuses on
early detection (screening). Tertiary prevention focuses on rehabilitation and
reducing complications.
Question 3
,A nurse is teaching about the chain of infection. Which component is interrupted
when a client with tuberculosis is placed in airborne isolation?
A) Reservoir
B) Portal of exit
C) Mode of transmission
D) Susceptible host
Correct ,,,answer,,,,: C – Mode of transmission
Rationale: Airborne isolation interrupts the mode of transmission by preventing
infectious droplets from reaching susceptible hosts. The reservoir is the infected
person; portal of exit is the respiratory tract; susceptible host is others.
Question 4
A community health nurse is using the epidemiological triangle to analyze an
outbreak of hepatitis A. Which factor represents the "agent"?
A) Contaminated water supply
B) Hepatitis A virus
C) Individuals who ate at the restaurant
D) Poor sanitation practices
Correct ,,,answer,,,,: B – Hepatitis A virus
Rationale: In the epidemiological triangle, the agent is the causative factor—in this
case, the Hepatitis A virus. The contaminated water supply and poor sanitation
represent environmental factors. Individuals who ate at the restaurant are
the hosts.
, Question 5
A nurse is calculating the incidence rate of influenza in a community. Which of the
following data is required?
A) Total number of existing cases of influenza
B) Total number of new cases of influenza during the time period
C) Total population at risk at the beginning of the time period
D) Both B and C
Correct ,,,answer,,,,: D – Both B and C
Rationale: Incidence rate requires both the number of new cases (numerator) and
the population at risk (denominator) during the specified time period. Prevalence
uses existing cases.
Question 6
A community health nurse is reviewing the concept of epidemiology. Which of the
following statements best describes the purpose of epidemiology?
A) To provide direct care to individuals in the community
B) To study the distribution and determinants of health-related states in
populations
C) To administer medications to clients with communicable diseases
D) To evaluate the effectiveness of individual treatment plans
Correct ,,,answer,,,,: B – To study the distribution and determinants of health-
related states in populations
PROCTORED EXAM WITH NGN ACTUAL
QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) PLUS RATIONALES
2026 Q&A | INSTANT DOWNLOAD PDF
SECTION 1: EPIDEMIOLOGY & POPULATION HEALTH
Question 1
A community health nurse is investigating an outbreak of foodborne illness at a
local restaurant. Which term describes the number of new cases in the population
during a specific time period?
A) Prevalence
B) Incidence
,C) Morbidity
D) Mortality
Correct ,,,answer,,,,: B – Incidence
Rationale: Incidence refers to the number of NEW cases of a disease occurring in a
population during a specified time period. Prevalence includes ALL cases (new and
existing). Morbidity refers to illness rates; mortality refers to death rates.
Question 2
A nurse is conducting a community assessment. Which level of prevention is being
implemented when the nurse provides influenza vaccinations at a senior center?
A) Primary prevention
B) Secondary prevention
C) Tertiary prevention
D) Health promotion
Correct ,,,answer,,,,: A – Primary prevention
Rationale: Primary prevention aims to prevent disease before it occurs.
Vaccinations are a primary prevention strategy. Secondary prevention focuses on
early detection (screening). Tertiary prevention focuses on rehabilitation and
reducing complications.
Question 3
,A nurse is teaching about the chain of infection. Which component is interrupted
when a client with tuberculosis is placed in airborne isolation?
A) Reservoir
B) Portal of exit
C) Mode of transmission
D) Susceptible host
Correct ,,,answer,,,,: C – Mode of transmission
Rationale: Airborne isolation interrupts the mode of transmission by preventing
infectious droplets from reaching susceptible hosts. The reservoir is the infected
person; portal of exit is the respiratory tract; susceptible host is others.
Question 4
A community health nurse is using the epidemiological triangle to analyze an
outbreak of hepatitis A. Which factor represents the "agent"?
A) Contaminated water supply
B) Hepatitis A virus
C) Individuals who ate at the restaurant
D) Poor sanitation practices
Correct ,,,answer,,,,: B – Hepatitis A virus
Rationale: In the epidemiological triangle, the agent is the causative factor—in this
case, the Hepatitis A virus. The contaminated water supply and poor sanitation
represent environmental factors. Individuals who ate at the restaurant are
the hosts.
, Question 5
A nurse is calculating the incidence rate of influenza in a community. Which of the
following data is required?
A) Total number of existing cases of influenza
B) Total number of new cases of influenza during the time period
C) Total population at risk at the beginning of the time period
D) Both B and C
Correct ,,,answer,,,,: D – Both B and C
Rationale: Incidence rate requires both the number of new cases (numerator) and
the population at risk (denominator) during the specified time period. Prevalence
uses existing cases.
Question 6
A community health nurse is reviewing the concept of epidemiology. Which of the
following statements best describes the purpose of epidemiology?
A) To provide direct care to individuals in the community
B) To study the distribution and determinants of health-related states in
populations
C) To administer medications to clients with communicable diseases
D) To evaluate the effectiveness of individual treatment plans
Correct ,,,answer,,,,: B – To study the distribution and determinants of health-
related states in populations
