NUR 206 Exam 3 Community Nursing
Concepts Review Official Practice Exam
Actual Exam 2026/2027 with Detailed
Rationales | Complete Exam-Style Questions |
Pass Guaranteed – A+ Graded
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SECTION 1: PUBLIC HEALTH FOUNDATIONS & EPIDEMIOLOGY Q1 – Q10
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Question 1 of 50
A public health nurse at the county health department is investigating a sudden increase in
gastrointestinal illness among patrons of a local restaurant. During the investigation, the
nurse identifies the specific strain of norovirus as the causative organism, reviews the
immune status of affected individuals, and evaluates the restaurant's food handling practices
and ventilation system. The nurse is applying which fundamental epidemiological framework?
A. The web of causation model
B. The epidemiological triangle ✓ CORRECT
C. The social-ecological model
D. The health belief model
Correct Answer: B
Rationale: The epidemiological triangle examines the interrelationship among agent
(norovirus), host (immune status of affected individuals), and environment (food handling
practices and ventilation), which is exactly what the nurse is evaluating in this outbreak
investigation. The web of causation model examines multiple contributing factors over time
rather than these three core elements. The social-ecological model focuses on individual,
interpersonal, community, and societal levels of influence, while the health belief model
explains individual health behavior rather than disease transmission dynamics.
Question 2 of 50
During a community health fair, a nurse reviews surveillance data showing that 45 new cases
of influenza were reported in the county last month among a population of 90,000 residents.
The nurse calculates the incidence rate to determine the burden of disease. What is the
correct incidence rate per 100,000 population?
,A. 25 cases per 100,000
B. 50 cases per 100,000 ✓ CORRECT
C. 75 cases per 100,000
D. 100 cases per 100,000
Correct Answer: B
Rationale: The incidence rate is calculated as (45 new cases ÷ 90,000 population) × 100,000 =
50 cases per 100,000 population, which measures the occurrence of new disease in a
population over a specified time period. The most common error is confusing incidence with
prevalence; incidence captures new cases only, while prevalence includes all existing cases.
Remember that incidence rates are essential for tracking disease trends and evaluating the
effectiveness of prevention programs over time.
Question 3 of 50
A school nurse notices that 12 children in a third-grade classroom of 30 students developed
chickenpox within two weeks of a single index case. The nurse reports this finding to the
state health department as part of mandatory disease surveillance. Which epidemiological
measure best describes what the nurse is calculating?
A. Prevalence rate
B. Incidence rate
C. Attack rate ✓ CORRECT
D. Mortality rate
Correct Answer: C
Rationale: The attack rate measures the proportion of a well-defined population that develops
illness during a limited time period, such as 12 out of 30 students (40%) developing
chickenpox in a classroom outbreak, making it the appropriate measure for this acute,
localized event. Prevalence measures the total burden of disease at a point in time, while
incidence rate is typically expressed per unit of population over time, and mortality rate
measures deaths rather than illness occurrence. Attack rates are particularly valuable in
outbreak investigations because they quickly identify high-risk settings and populations.
Question 4 of 50
The state health department reports that Valley Fever has been present in the southwestern
United States at a consistent low level for the past decade with no significant change in case
numbers. Which term best describes this pattern of disease occurrence?
A. Epidemic
B. Endemic ✓ CORRECT
C. Pandemic
D. Sporadic
, Correct Answer: B
Rationale: Endemic refers to the constant presence of a disease or infectious agent within a
given geographic area or population group, which accurately describes Valley Fever's stable,
ongoing occurrence in the southwestern United States. An epidemic involves a sudden
increase in cases above expected levels, a pandemic spreads across multiple countries or
continents, and sporadic describes occasional cases with no predictable pattern.
Understanding these distinctions is critical for public health surveillance and resource
allocation decisions.
Question 5 of 50
A community health nurse is preparing an educational presentation for new nursing graduates
about diseases monitored by the National Notifiable Diseases Surveillance System (NNDSS).
Which disease should the nurse include as a priority concern for bioterrorism preparedness?
A. Lyme disease
B. Varicella
C. Anthrax ✓ CORRECT
D. Hepatitis A
Correct Answer: C
Rationale: Anthrax is classified as a Category A bioterrorism agent by the CDC due to its
potential for mass dissemination, high mortality rate, and ability to cause public panic and
social disruption, making it a priority for NNDSS surveillance and preparedness planning.
While Lyme disease, varicella, and hepatitis A are all notifiable conditions, they are not
considered bioterrorism threats. Public health nurses must maintain heightened awareness
of Category A agents because early recognition and reporting can prevent catastrophic
outcomes during a deliberate release event.
Question 6 of 50
A county health department is conducting a community health assessment to identify priority
health needs. The nursing director assigns a team to analyze birth certificates, death
certificates, and reportable disease data from the past five years. Which core public health
function is this team primarily performing?
A. Policy development
B. Assurance
C. Assessment ✓ CORRECT
D. Research
Correct Answer: C
Rationale: Assessment is one of the three core public health functions defined by the
Institute of Medicine, involving the systematic collection and analysis of health-related data
Concepts Review Official Practice Exam
Actual Exam 2026/2027 with Detailed
Rationales | Complete Exam-Style Questions |
Pass Guaranteed – A+ Graded
══════════════════════════════════════
SECTION 1: PUBLIC HEALTH FOUNDATIONS & EPIDEMIOLOGY Q1 – Q10
══════════════════════════════════════
Question 1 of 50
A public health nurse at the county health department is investigating a sudden increase in
gastrointestinal illness among patrons of a local restaurant. During the investigation, the
nurse identifies the specific strain of norovirus as the causative organism, reviews the
immune status of affected individuals, and evaluates the restaurant's food handling practices
and ventilation system. The nurse is applying which fundamental epidemiological framework?
A. The web of causation model
B. The epidemiological triangle ✓ CORRECT
C. The social-ecological model
D. The health belief model
Correct Answer: B
Rationale: The epidemiological triangle examines the interrelationship among agent
(norovirus), host (immune status of affected individuals), and environment (food handling
practices and ventilation), which is exactly what the nurse is evaluating in this outbreak
investigation. The web of causation model examines multiple contributing factors over time
rather than these three core elements. The social-ecological model focuses on individual,
interpersonal, community, and societal levels of influence, while the health belief model
explains individual health behavior rather than disease transmission dynamics.
Question 2 of 50
During a community health fair, a nurse reviews surveillance data showing that 45 new cases
of influenza were reported in the county last month among a population of 90,000 residents.
The nurse calculates the incidence rate to determine the burden of disease. What is the
correct incidence rate per 100,000 population?
,A. 25 cases per 100,000
B. 50 cases per 100,000 ✓ CORRECT
C. 75 cases per 100,000
D. 100 cases per 100,000
Correct Answer: B
Rationale: The incidence rate is calculated as (45 new cases ÷ 90,000 population) × 100,000 =
50 cases per 100,000 population, which measures the occurrence of new disease in a
population over a specified time period. The most common error is confusing incidence with
prevalence; incidence captures new cases only, while prevalence includes all existing cases.
Remember that incidence rates are essential for tracking disease trends and evaluating the
effectiveness of prevention programs over time.
Question 3 of 50
A school nurse notices that 12 children in a third-grade classroom of 30 students developed
chickenpox within two weeks of a single index case. The nurse reports this finding to the
state health department as part of mandatory disease surveillance. Which epidemiological
measure best describes what the nurse is calculating?
A. Prevalence rate
B. Incidence rate
C. Attack rate ✓ CORRECT
D. Mortality rate
Correct Answer: C
Rationale: The attack rate measures the proportion of a well-defined population that develops
illness during a limited time period, such as 12 out of 30 students (40%) developing
chickenpox in a classroom outbreak, making it the appropriate measure for this acute,
localized event. Prevalence measures the total burden of disease at a point in time, while
incidence rate is typically expressed per unit of population over time, and mortality rate
measures deaths rather than illness occurrence. Attack rates are particularly valuable in
outbreak investigations because they quickly identify high-risk settings and populations.
Question 4 of 50
The state health department reports that Valley Fever has been present in the southwestern
United States at a consistent low level for the past decade with no significant change in case
numbers. Which term best describes this pattern of disease occurrence?
A. Epidemic
B. Endemic ✓ CORRECT
C. Pandemic
D. Sporadic
, Correct Answer: B
Rationale: Endemic refers to the constant presence of a disease or infectious agent within a
given geographic area or population group, which accurately describes Valley Fever's stable,
ongoing occurrence in the southwestern United States. An epidemic involves a sudden
increase in cases above expected levels, a pandemic spreads across multiple countries or
continents, and sporadic describes occasional cases with no predictable pattern.
Understanding these distinctions is critical for public health surveillance and resource
allocation decisions.
Question 5 of 50
A community health nurse is preparing an educational presentation for new nursing graduates
about diseases monitored by the National Notifiable Diseases Surveillance System (NNDSS).
Which disease should the nurse include as a priority concern for bioterrorism preparedness?
A. Lyme disease
B. Varicella
C. Anthrax ✓ CORRECT
D. Hepatitis A
Correct Answer: C
Rationale: Anthrax is classified as a Category A bioterrorism agent by the CDC due to its
potential for mass dissemination, high mortality rate, and ability to cause public panic and
social disruption, making it a priority for NNDSS surveillance and preparedness planning.
While Lyme disease, varicella, and hepatitis A are all notifiable conditions, they are not
considered bioterrorism threats. Public health nurses must maintain heightened awareness
of Category A agents because early recognition and reporting can prevent catastrophic
outcomes during a deliberate release event.
Question 6 of 50
A county health department is conducting a community health assessment to identify priority
health needs. The nursing director assigns a team to analyze birth certificates, death
certificates, and reportable disease data from the past five years. Which core public health
function is this team primarily performing?
A. Policy development
B. Assurance
C. Assessment ✓ CORRECT
D. Research
Correct Answer: C
Rationale: Assessment is one of the three core public health functions defined by the
Institute of Medicine, involving the systematic collection and analysis of health-related data
