NURS 306 | NURS306 Exam 2: Expanding Family
and Community - WCU Updated and Latest
Questions and Correct Answers with Rationale
1. A community health nurse is conducting a windshield survey. Which of the following data
should the nurse collect during this assessment?
A. Census data regarding population density
B. Vital statistics on birth and death rates
C. Personal interviews with local business owners
D. The general condition of the housing in the neighborhood
Correct Answer: D
Rationale: A windshield survey is an informal survey where the nurse drives through a
community to observe its characteristics directly. This specific assessment focuses on the
physical environment, including housing conditions, availability of green space, and visible
resources. It differs from secondary data analysis because it relies on objective observation
rather than statistics. The nurse uses this method to gain a quick overview of the
community’s assets and needs. This type of assessment helps in identifying health risks
that are visually apparent in the environment.
2. When calculating the incidence rate of a specific disease, which of the following represents
the denominator?
A. The number of new cases of the disease identified during the year
B. The total number of people in the population at risk during a specific time
C. The number of existing cases of the disease in the community
D. The number of people who have died from the disease
Correct Answer: B
Rationale: The incidence rate measures the frequency of new cases of a disease within a
specific timeframe. The numerator consists of the number of new cases, while the
denominator is the total population at risk for developing the condition. This calculation
helps epidemiologists understand the speed at which a disease is spreading. It is distinct
from prevalence, which includes all existing cases at a single point in time. Accurate
incidence data is vital for assessing the effectiveness of primary prevention programs.
3. A nurse is teaching a group of parents about lead poisoning prevention. Which level of
prevention is being implemented?
A. Secondary prevention
B. Primary prevention
,C. Tertiary prevention
D. Quaternary prevention
Correct Answer: B
Rationale: Primary prevention focuses on preventing the initial occurrence of a disease or
injury through education and health promotion. By teaching parents about environmental
risks before lead poisoning occurs, the nurse is acting at the primary level. This strategy
aims to reduce the overall incidence of the condition in the population. It differs from
secondary prevention, which would involve screening children for high blood lead levels.
Effective primary prevention minimizes the need for future medical interventions and
long-term treatment.
4. The epidemiological triangle consists of the host, the agent, and which of the following?
A. The environment
B. The vector
C. The reservoir
D. The portal of entry
Correct Answer: A
Rationale: The epidemiological triangle is a fundamental model used to study how
diseases occur and spread within a population. It posits that disease results from the
interaction between an external agent, a susceptible host, and the surrounding
environment. The environment includes physical factors like climate and social factors like
population density. Changing any one of these three factors can significantly impact the
distribution of health and illness. Nurses use this model to identify where interventions can
best break the cycle of disease transmission.
5. Which of the following describes the prevalence rate of a chronic condition?
A. The number of new cases diagnosed in the last six months
B. The speed at which the condition is spreading through a community
C. The percentage of the population that died from the condition this year
D. The total number of people currently living with the condition in a population
Correct Answer: D
Rationale: Prevalence refers to the total number of existing cases of a disease in a
population at a specific point in time. It includes both new and pre-existing cases, providing
a snapshot of the total disease burden. This metric is particularly useful for planning
healthcare services and allocating resources for chronic conditions. It is calculated by
dividing the total number of cases by the total population. Unlike incidence, prevalence
does not measure the rate of new infections but rather the overall status of the community.
, 6. A community nurse is screening school-aged children for scoliosis. This is an example of:
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Health promotion
Correct Answer: B
Rationale: Secondary prevention involves the early detection and screening of diseases to
ensure prompt treatment and limit disability. Scoliosis screening in schools aims to identify
the condition in its early stages before it progresses to severe deformity. This level of
prevention occurs after the disease process has begun but before symptoms become
clinically obvious. It is a core function of community health nursing to mitigate the impact
of illnesses. Successful screening programs depend on high sensitivity and specificity to
ensure accurate results.
7. Which epidemiological concept explains how multiple factors, such as genetics, diet, and
stress, interact to cause heart disease?
A. Web of Causality
B. Wheel of Causation
C. Epidemiological Triangle
D. Natural History of Disease
Correct Answer: A
Rationale: The web of causality is an epidemiological model used to describe the complex
interrelationships of many factors that increase or decrease the risk of disease. This model
is especially useful for chronic non-infectious diseases where no single agent is responsible
for the outcome. It illustrates how various lifestyle, environmental, and biological factors
overlap and influence one another. By understanding this web, nurses can identify multiple
points of intervention to improve health outcomes. It moves beyond the simple agent-host-
environment model to reflect modern health challenges.
8. In the ‘I PREPARE’ mnemonic for assessing environmental health risks, what does the ‘E’
stand for?
A. Environment
B. Education
C. Employment
D. Exposure
Correct Answer: D
and Community - WCU Updated and Latest
Questions and Correct Answers with Rationale
1. A community health nurse is conducting a windshield survey. Which of the following data
should the nurse collect during this assessment?
A. Census data regarding population density
B. Vital statistics on birth and death rates
C. Personal interviews with local business owners
D. The general condition of the housing in the neighborhood
Correct Answer: D
Rationale: A windshield survey is an informal survey where the nurse drives through a
community to observe its characteristics directly. This specific assessment focuses on the
physical environment, including housing conditions, availability of green space, and visible
resources. It differs from secondary data analysis because it relies on objective observation
rather than statistics. The nurse uses this method to gain a quick overview of the
community’s assets and needs. This type of assessment helps in identifying health risks
that are visually apparent in the environment.
2. When calculating the incidence rate of a specific disease, which of the following represents
the denominator?
A. The number of new cases of the disease identified during the year
B. The total number of people in the population at risk during a specific time
C. The number of existing cases of the disease in the community
D. The number of people who have died from the disease
Correct Answer: B
Rationale: The incidence rate measures the frequency of new cases of a disease within a
specific timeframe. The numerator consists of the number of new cases, while the
denominator is the total population at risk for developing the condition. This calculation
helps epidemiologists understand the speed at which a disease is spreading. It is distinct
from prevalence, which includes all existing cases at a single point in time. Accurate
incidence data is vital for assessing the effectiveness of primary prevention programs.
3. A nurse is teaching a group of parents about lead poisoning prevention. Which level of
prevention is being implemented?
A. Secondary prevention
B. Primary prevention
,C. Tertiary prevention
D. Quaternary prevention
Correct Answer: B
Rationale: Primary prevention focuses on preventing the initial occurrence of a disease or
injury through education and health promotion. By teaching parents about environmental
risks before lead poisoning occurs, the nurse is acting at the primary level. This strategy
aims to reduce the overall incidence of the condition in the population. It differs from
secondary prevention, which would involve screening children for high blood lead levels.
Effective primary prevention minimizes the need for future medical interventions and
long-term treatment.
4. The epidemiological triangle consists of the host, the agent, and which of the following?
A. The environment
B. The vector
C. The reservoir
D. The portal of entry
Correct Answer: A
Rationale: The epidemiological triangle is a fundamental model used to study how
diseases occur and spread within a population. It posits that disease results from the
interaction between an external agent, a susceptible host, and the surrounding
environment. The environment includes physical factors like climate and social factors like
population density. Changing any one of these three factors can significantly impact the
distribution of health and illness. Nurses use this model to identify where interventions can
best break the cycle of disease transmission.
5. Which of the following describes the prevalence rate of a chronic condition?
A. The number of new cases diagnosed in the last six months
B. The speed at which the condition is spreading through a community
C. The percentage of the population that died from the condition this year
D. The total number of people currently living with the condition in a population
Correct Answer: D
Rationale: Prevalence refers to the total number of existing cases of a disease in a
population at a specific point in time. It includes both new and pre-existing cases, providing
a snapshot of the total disease burden. This metric is particularly useful for planning
healthcare services and allocating resources for chronic conditions. It is calculated by
dividing the total number of cases by the total population. Unlike incidence, prevalence
does not measure the rate of new infections but rather the overall status of the community.
, 6. A community nurse is screening school-aged children for scoliosis. This is an example of:
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Health promotion
Correct Answer: B
Rationale: Secondary prevention involves the early detection and screening of diseases to
ensure prompt treatment and limit disability. Scoliosis screening in schools aims to identify
the condition in its early stages before it progresses to severe deformity. This level of
prevention occurs after the disease process has begun but before symptoms become
clinically obvious. It is a core function of community health nursing to mitigate the impact
of illnesses. Successful screening programs depend on high sensitivity and specificity to
ensure accurate results.
7. Which epidemiological concept explains how multiple factors, such as genetics, diet, and
stress, interact to cause heart disease?
A. Web of Causality
B. Wheel of Causation
C. Epidemiological Triangle
D. Natural History of Disease
Correct Answer: A
Rationale: The web of causality is an epidemiological model used to describe the complex
interrelationships of many factors that increase or decrease the risk of disease. This model
is especially useful for chronic non-infectious diseases where no single agent is responsible
for the outcome. It illustrates how various lifestyle, environmental, and biological factors
overlap and influence one another. By understanding this web, nurses can identify multiple
points of intervention to improve health outcomes. It moves beyond the simple agent-host-
environment model to reflect modern health challenges.
8. In the ‘I PREPARE’ mnemonic for assessing environmental health risks, what does the ‘E’
stand for?
A. Environment
B. Education
C. Employment
D. Exposure
Correct Answer: D
