NUR 426 Exam 4: Community Health Nursing Theory &
Application V1 - Arizona College Updated and Latest
Questions and Correct Answers with Rationale
1. A community health nurse is conducting a windshield survey to assess the health of a neighborhood.
Which observation should the nurse prioritize as a primary indicator of environmental health risk?
A. The presence of graffiti on abandoned buildings
B. High density of fast food establishments
C. Lack of public transportation options
D. Visible lead paint peeling on older residential structures
Ans: D
Explanation: Visible peeling lead paint in older homes represents a direct and immediate environmental
health risk for heavy metal poisoning, particularly in children. Lead exposure is a critical priority because
it can cause irreversible neurological damage even at low levels. While other options represent social or
lifestyle factors, they do not carry the same acute toxicity risk as lead. Environmental assessment
requires identifying specific hazardous materials present in the community. This observation triggers
immediate primary and secondary prevention protocols within the population.
2. A nurse is planning a primary prevention strategy for a group of migrant farm workers. Which of the
following interventions should the nurse include?
A. Providing education on proper pesticide handling and protective gear
B. Conducting screenings for tuberculosis exposure
C. Managing insulin regimens for workers with type 2 diabetes
D. Referring workers with chronic back pain to physical therapy
,Ans: A
Explanation: Primary prevention focuses on preventing the initial occurrence of a disease or injury
through education and risk reduction. Teaching migrant workers about pesticide safety aims to stop
chemical exposure before it happens. Screening for tuberculosis is considered secondary prevention
because it identifies existing latent or active infections. Managing diabetes or providing physical therapy
are examples of tertiary prevention focused on rehabilitation. This proactive approach helps reduce
occupational hazards common in agricultural settings.
3. In the epidemiological triad, a nurse identifies that a contaminated water source is responsible for an
outbreak of cholera. This water source represents which component of the triad?
A. The environment
B. The agent
C. The vector
D. The host
Ans: A
Explanation: The environment in the epidemiological triad refers to the external factors that allow the
agent and host to interact. A contaminated water source acts as the medium or setting where the cholera-
causing bacteria (the agent) can reach human hosts. The host would be the individual person susceptible
to the infection. The agent itself is the Vibrio cholerae bacterium. Understanding these relationships
allows the community health nurse to implement effective interventions like water sanitation.
4. A school nurse is implementing secondary prevention for students. Which of the following activities
should the nurse perform?
A. Teaching a class about the dangers of smoking
, B. Administering flu vaccines to faculty and students
C. Performing routine vision and hearing screenings
D. Developing a support group for students with asthma
Ans: C
Explanation: Secondary prevention involves early detection and screening to identify health conditions
at a stage where they can be treated or managed. Routine vision and hearing screenings are classic
examples of identifying sensory deficits in a school population. Teaching about smoking and giving
vaccines are primary prevention measures aimed at preventing disease. Developing support groups for
students who already have a chronic illness like asthma falls under tertiary prevention. This screening
ensures that students receive early intervention to support their educational success.
5. During a disaster response, a triage nurse encounters a victim who is conscious, has a respiratory rate of
24/min, a capillary refill of 1.5 seconds, and can follow simple commands. Which color tag should the nurse
assign?
A. Red
B. Black
C. Green
D. Yellow
Ans: D
Explanation: The victim is tagged yellow because they are stable enough to wait for a short period but
require medical attention. Under the START triage system, respiratory rates under 30, capillary refill
under 2 seconds, and the ability to follow commands indicate a delayed status. Red tags are for those with
life-threatening injuries requiring immediate intervention, while green tags are for the ‘walking
Application V1 - Arizona College Updated and Latest
Questions and Correct Answers with Rationale
1. A community health nurse is conducting a windshield survey to assess the health of a neighborhood.
Which observation should the nurse prioritize as a primary indicator of environmental health risk?
A. The presence of graffiti on abandoned buildings
B. High density of fast food establishments
C. Lack of public transportation options
D. Visible lead paint peeling on older residential structures
Ans: D
Explanation: Visible peeling lead paint in older homes represents a direct and immediate environmental
health risk for heavy metal poisoning, particularly in children. Lead exposure is a critical priority because
it can cause irreversible neurological damage even at low levels. While other options represent social or
lifestyle factors, they do not carry the same acute toxicity risk as lead. Environmental assessment
requires identifying specific hazardous materials present in the community. This observation triggers
immediate primary and secondary prevention protocols within the population.
2. A nurse is planning a primary prevention strategy for a group of migrant farm workers. Which of the
following interventions should the nurse include?
A. Providing education on proper pesticide handling and protective gear
B. Conducting screenings for tuberculosis exposure
C. Managing insulin regimens for workers with type 2 diabetes
D. Referring workers with chronic back pain to physical therapy
,Ans: A
Explanation: Primary prevention focuses on preventing the initial occurrence of a disease or injury
through education and risk reduction. Teaching migrant workers about pesticide safety aims to stop
chemical exposure before it happens. Screening for tuberculosis is considered secondary prevention
because it identifies existing latent or active infections. Managing diabetes or providing physical therapy
are examples of tertiary prevention focused on rehabilitation. This proactive approach helps reduce
occupational hazards common in agricultural settings.
3. In the epidemiological triad, a nurse identifies that a contaminated water source is responsible for an
outbreak of cholera. This water source represents which component of the triad?
A. The environment
B. The agent
C. The vector
D. The host
Ans: A
Explanation: The environment in the epidemiological triad refers to the external factors that allow the
agent and host to interact. A contaminated water source acts as the medium or setting where the cholera-
causing bacteria (the agent) can reach human hosts. The host would be the individual person susceptible
to the infection. The agent itself is the Vibrio cholerae bacterium. Understanding these relationships
allows the community health nurse to implement effective interventions like water sanitation.
4. A school nurse is implementing secondary prevention for students. Which of the following activities
should the nurse perform?
A. Teaching a class about the dangers of smoking
, B. Administering flu vaccines to faculty and students
C. Performing routine vision and hearing screenings
D. Developing a support group for students with asthma
Ans: C
Explanation: Secondary prevention involves early detection and screening to identify health conditions
at a stage where they can be treated or managed. Routine vision and hearing screenings are classic
examples of identifying sensory deficits in a school population. Teaching about smoking and giving
vaccines are primary prevention measures aimed at preventing disease. Developing support groups for
students who already have a chronic illness like asthma falls under tertiary prevention. This screening
ensures that students receive early intervention to support their educational success.
5. During a disaster response, a triage nurse encounters a victim who is conscious, has a respiratory rate of
24/min, a capillary refill of 1.5 seconds, and can follow simple commands. Which color tag should the nurse
assign?
A. Red
B. Black
C. Green
D. Yellow
Ans: D
Explanation: The victim is tagged yellow because they are stable enough to wait for a short period but
require medical attention. Under the START triage system, respiratory rates under 30, capillary refill
under 2 seconds, and the ability to follow commands indicate a delayed status. Red tags are for those with
life-threatening injuries requiring immediate intervention, while green tags are for the ‘walking
