N340 | N340 Exam 2: Public Health - WCU Updated
and Latest Questions and Correct Answers with
Rationale
1. A community health nurse is conducting a blood pressure screening at a local senior center.
Which level of prevention does this activity represent?
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Quaternary prevention
Correct Answer: B
Rationale: Secondary prevention is focused on early detection and prompt intervention to
limit the impact of disease. Screening programs like blood pressure checks help identify
asymptomatic individuals who may have a condition. By detecting hypertension early, the
nurse can facilitate medical follow-up and lifestyle changes. This level of prevention occurs
after a problem has begun but before symptoms are severe. It is a critical component of
community-based health promotion.
2. Which of the following interventions is an example of primary prevention for a
communicable disease?
A. Providing DOT (Directly Observed Therapy) for a patient with TB
B. Performing a Mantoux skin test on a healthcare worker
C. Administering the Influenza vaccine at a community clinic
D. Leading a support group for individuals living with HIV
Correct Answer: C
Rationale: Primary prevention aims to prevent the onset of disease before it occurs.
Immunizations are the hallmark of primary prevention because they provide immunity
against specific pathogens. By vaccinating the community, the nurse reduces the overall
susceptibility to the virus. This intervention targets healthy populations to maintain their
health status. It differs from secondary prevention, which focuses on testing or screening.
3. A public health nurse is working with a group of patients who have already been diagnosed
with Type 2 Diabetes. The nurse focuses on foot care education to prevent amputations.
Which level of prevention is this?
A. Primary prevention
B. Secondary prevention
,C. Primordial prevention
D. Tertiary prevention
Correct Answer: D
Rationale: Tertiary prevention aims to minimize the effects of a long-term disease or
injury. In this scenario, the patients already have the diagnosis of diabetes. The goal of foot
care education is to prevent further complications such as infection or amputation. This
stage of prevention focuses on rehabilitation and improving quality of life. It helps patients
manage chronic conditions to avoid disability.
4. When applying the Epidemiological Triangle to an outbreak of foodborne illness, which of
the following is considered the ‘Agent’?
A. The contaminated potato salad
B. The Salmonella bacteria
C. The individuals who ate the food
D. The warm temperature of the picnic area
Correct Answer: B
Rationale: The Epidemiological Triangle consists of the agent, the host, and the
environment. The agent is the animate or inanimate factor that must be present for a
disease to develop. In this case, Salmonella is the specific biological pathogen responsible
for the illness. The host refers to the humans who ingested the bacteria. The environment
includes external factors like the temperature that allowed the bacteria to grow.
5. A nurse is performing a windshield survey of a community. What is the primary purpose of
this assessment tool?
A. To interview key informants about community needs
B. To gather objective data by observing the community’s physical environment
C. To analyze census data for demographic trends
D. To provide direct clinical care to residents in their homes
Correct Answer: B
Rationale: A windshield survey is a subjective and objective assessment conducted while
driving through a community. It allows the nurse to observe the physical environment,
infrastructure, and visible social patterns. This method provides an initial ‘overview’ of the
community’s strengths and weaknesses. It is a cost-effective way to identify areas that may
require more intensive study. The nurse looks for indicators of health like green spaces,
grocery stores, and housing quality.
, 6. The nurse is calculating the number of new cases of COVID-19 in a specific county over the
last month. Which epidemiological measure is the nurse determining?
A. Prevalence rate
B. Mortality rate
C. Incidence rate
D. Attack rate
Correct Answer: C
Rationale: Incidence rate refers to the number of new cases of a disease within a specific
population over a defined period. It is used to measure the risk of contracting the disease.
In contrast, prevalence includes both new and existing cases at a single point in time.
Monitoring incidence helps public health officials track the spread of an outbreak. It is a
vital statistic for planning resource allocation and prevention strategies.
7. A community nurse is teaching a class on lifestyle modifications to prevent heart disease.
This is an example of which Healthy People 2030 overarching goal?
A. Engage leadership and the public to design effective health policies
B. Eliminate health disparities and achieve health equity
C. Create social, physical, and economic environments that promote health
D. Attain healthy, thriving lives and well-being free of preventable disease
Correct Answer: D
Rationale: Healthy People 2030 sets national objectives to improve the health of all
Americans. The goal of attaining healthy lives free of preventable disease focuses on health
promotion and disease prevention. By teaching lifestyle modifications, the nurse is directly
addressing preventable risk factors like diet and exercise. This proactive approach aims to
increase the lifespan and quality of life for the population. It aligns with the initiative’s
focus on evidence-based public health interventions.
8. Which population is considered most ‘vulnerable’ in the context of public health?
A. Healthy middle-aged adults with health insurance
B. Individuals living in poverty with limited access to healthcare
C. College students living in dormitories
D. Retired individuals with stable pensions
Correct Answer: B
Rationale: Vulnerable populations are those at higher risk for poor health outcomes due to
social, economic, or environmental factors. Poverty is a primary driver of vulnerability
and Latest Questions and Correct Answers with
Rationale
1. A community health nurse is conducting a blood pressure screening at a local senior center.
Which level of prevention does this activity represent?
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Quaternary prevention
Correct Answer: B
Rationale: Secondary prevention is focused on early detection and prompt intervention to
limit the impact of disease. Screening programs like blood pressure checks help identify
asymptomatic individuals who may have a condition. By detecting hypertension early, the
nurse can facilitate medical follow-up and lifestyle changes. This level of prevention occurs
after a problem has begun but before symptoms are severe. It is a critical component of
community-based health promotion.
2. Which of the following interventions is an example of primary prevention for a
communicable disease?
A. Providing DOT (Directly Observed Therapy) for a patient with TB
B. Performing a Mantoux skin test on a healthcare worker
C. Administering the Influenza vaccine at a community clinic
D. Leading a support group for individuals living with HIV
Correct Answer: C
Rationale: Primary prevention aims to prevent the onset of disease before it occurs.
Immunizations are the hallmark of primary prevention because they provide immunity
against specific pathogens. By vaccinating the community, the nurse reduces the overall
susceptibility to the virus. This intervention targets healthy populations to maintain their
health status. It differs from secondary prevention, which focuses on testing or screening.
3. A public health nurse is working with a group of patients who have already been diagnosed
with Type 2 Diabetes. The nurse focuses on foot care education to prevent amputations.
Which level of prevention is this?
A. Primary prevention
B. Secondary prevention
,C. Primordial prevention
D. Tertiary prevention
Correct Answer: D
Rationale: Tertiary prevention aims to minimize the effects of a long-term disease or
injury. In this scenario, the patients already have the diagnosis of diabetes. The goal of foot
care education is to prevent further complications such as infection or amputation. This
stage of prevention focuses on rehabilitation and improving quality of life. It helps patients
manage chronic conditions to avoid disability.
4. When applying the Epidemiological Triangle to an outbreak of foodborne illness, which of
the following is considered the ‘Agent’?
A. The contaminated potato salad
B. The Salmonella bacteria
C. The individuals who ate the food
D. The warm temperature of the picnic area
Correct Answer: B
Rationale: The Epidemiological Triangle consists of the agent, the host, and the
environment. The agent is the animate or inanimate factor that must be present for a
disease to develop. In this case, Salmonella is the specific biological pathogen responsible
for the illness. The host refers to the humans who ingested the bacteria. The environment
includes external factors like the temperature that allowed the bacteria to grow.
5. A nurse is performing a windshield survey of a community. What is the primary purpose of
this assessment tool?
A. To interview key informants about community needs
B. To gather objective data by observing the community’s physical environment
C. To analyze census data for demographic trends
D. To provide direct clinical care to residents in their homes
Correct Answer: B
Rationale: A windshield survey is a subjective and objective assessment conducted while
driving through a community. It allows the nurse to observe the physical environment,
infrastructure, and visible social patterns. This method provides an initial ‘overview’ of the
community’s strengths and weaknesses. It is a cost-effective way to identify areas that may
require more intensive study. The nurse looks for indicators of health like green spaces,
grocery stores, and housing quality.
, 6. The nurse is calculating the number of new cases of COVID-19 in a specific county over the
last month. Which epidemiological measure is the nurse determining?
A. Prevalence rate
B. Mortality rate
C. Incidence rate
D. Attack rate
Correct Answer: C
Rationale: Incidence rate refers to the number of new cases of a disease within a specific
population over a defined period. It is used to measure the risk of contracting the disease.
In contrast, prevalence includes both new and existing cases at a single point in time.
Monitoring incidence helps public health officials track the spread of an outbreak. It is a
vital statistic for planning resource allocation and prevention strategies.
7. A community nurse is teaching a class on lifestyle modifications to prevent heart disease.
This is an example of which Healthy People 2030 overarching goal?
A. Engage leadership and the public to design effective health policies
B. Eliminate health disparities and achieve health equity
C. Create social, physical, and economic environments that promote health
D. Attain healthy, thriving lives and well-being free of preventable disease
Correct Answer: D
Rationale: Healthy People 2030 sets national objectives to improve the health of all
Americans. The goal of attaining healthy lives free of preventable disease focuses on health
promotion and disease prevention. By teaching lifestyle modifications, the nurse is directly
addressing preventable risk factors like diet and exercise. This proactive approach aims to
increase the lifespan and quality of life for the population. It aligns with the initiative’s
focus on evidence-based public health interventions.
8. Which population is considered most ‘vulnerable’ in the context of public health?
A. Healthy middle-aged adults with health insurance
B. Individuals living in poverty with limited access to healthcare
C. College students living in dormitories
D. Retired individuals with stable pensions
Correct Answer: B
Rationale: Vulnerable populations are those at higher risk for poor health outcomes due to
social, economic, or environmental factors. Poverty is a primary driver of vulnerability
