ACTUAL PRACTICE EXAM 2026/2027 | Verified
Questions and Answers | Population-Focused &
Epidemiology-Based | Grade A Target | Pass Guaranteed
Section 1: Foundations of Public Health & Epidemiology (Questions 1-20)
Q1: A community health nurse is analyzing data for a rural county. In 2024, there were 45 new
cases of Lyme disease in a population of 150,000. Which calculation represents the incidence
rate of Lyme disease in this county?
A. 45 divided by 150,000, multiplied by 1,000 B. Total Lyme cases ever diagnosed divided by
150,000, multiplied by 100,000 C. 45 divided by 150,000, multiplied by 100,000 [CORRECT]
D. 45 divided by total person-years of observation in the population
Correct Answer: C
Q2: [SATA] Which activities represent the core public health functions as defined by the
Institute of Medicine? (Select all that apply.)
A. A nurse conducting blood pressure screenings at a senior center B. State health department
developing vaccination requirements for school entry [CORRECT] C. County health department
analyzing childhood obesity trends from school district data [CORRECT] D. Hospital emergency
department treating victims of a multi-car accident E. Community coalition advocating for
smoke-free workplace legislation [CORRECT] F. Home health nurse changing a wound dressing
for a post-surgical patient
Correct Answers: B, C, E
Q3: A community has 500 existing cases of diabetes mellitus in a population of 50,000. During
the past year, 75 new cases were diagnosed, and 25 people with diabetes died. What is the
prevalence of diabetes in this community?
A. 75 per 50,000 B. 500 per 50,000, or 1,000 per 100,000 [CORRECT] C. (500 + 75 - 25) per
50,000 D. 75 per 100,000 person-years
Correct Answer: B
,Q4: A public health nurse is planning interventions for a community with high rates of childhood
asthma. Which intervention represents primary prevention?
A. Establishing school-based asthma clinics for medication management B. Implementing a
home visiting program to assess for mold and tobacco smoke exposure [CORRECT] C. Creating
a support group for parents of children with severe asthma D. Developing a rapid response
protocol for asthma emergencies in schools
Correct Answer: B
Q5: An outbreak of norovirus occurs at a long-term care facility. Over 5 days, 60 residents and
15 staff develop symptoms. The facility has 120 residents and 80 staff total. Which attack rate
calculation is correct?
A. 60 divided by 120, multiplied by 100 (resident attack rate only) B. 75 divided by 200,
multiplied by 100 (overall attack rate) [CORRECT] C. 15 divided by 80, multiplied by 100 (staff
attack rate only) D. 60 divided by 75, multiplied by 100 (case fatality rate)
Correct Answer: B
Q6: [SATA] A community health nurse is using the epidemiological triangle to analyze a
foodborne illness outbreak. Which factors should the nurse consider? (Select all that apply.)
A. The specific genetic strain of Salmonella identified in laboratory testing [CORRECT] B. The
socioeconomic status of individuals who became ill C. The temperature at which contaminated
chicken was stored [CORRECT] D. The immune status of elderly residents who consumed the
food [CORRECT] E. The availability of hospital beds in the county F. The cost of antibiotics to
treat the infection
Correct Answers: A, C, D
Q7: The crude mortality rate in Community A is 12 per 1,000; in Community B, it is 8 per 1,000.
Community A has a much higher proportion of residents over age 65. Which statement best
explains this difference?
A. Community A has poorer healthcare quality than Community B B. Community A has higher
age-specific mortality rates for all age groups C. The difference may reflect different age
distributions; age-adjusted rates should be compared [CORRECT] D. Community B has better
environmental health conditions
Correct Answer: C
, Q8: A nurse is calculating years of potential life lost (YPLL) for a community. A 25-year-old
dies in a motor vehicle accident. Using age 75 as the standard, what is the YPLL for this death?
A. 25 years B. 50 years [CORRECT] C. 75 years D. Cannot be calculated without knowing the
cause of death
Correct Answer: B
Q9: Which scenario best illustrates the concept of "herd immunity"?
A. A vaccinated individual does not develop influenza despite exposure B. 85% of a
community's children are vaccinated against measles, protecting unvaccinated infants and
immunocompromised individuals [CORRECT] C. A nurse receives hepatitis B vaccine due to
occupational exposure risk D. An elderly patient receives pneumococcal vaccine and does not
develop pneumonia
Correct Answer: B
Q10: [SATA] A community health nurse is investigating a cluster of Legionnaires' disease cases.
Which steps are part of a systematic outbreak investigation? (Select all that apply.)
A. Establishing a case definition based on clinical and laboratory criteria [CORRECT] B.
Immediately closing all suspected sources without confirmatory testing C. Creating an epidemic
curve to visualize case distribution over time [CORRECT] D. Calculating food-specific attack
rates to identify the vehicle [CORRECT] E. Treating all ill individuals before collecting exposure
data F. Comparing exposures of cases and controls in a case-control study [CORRECT]
Correct Answers: A, C, D, F
Q11: The Healthy People 2030 initiative identifies leading health indicators for the nation.
Which indicator is a measure of health disparity?
A. Proportion of adults with health insurance B. Difference in infant mortality rates between
Black and White populations [CORRECT] C. Overall life expectancy at birth D. Percentage of
population meeting physical activity guidelines
Correct Answer: B