ATI Community Health Proctored Exam 2026/2027
– NGN Practice Exam
100+ Questions with ANSWERs and Rationales
SECTION A: FOUNDATIONS OF COMMUNITY HEALTH & EPIDEMIOLOGY
1. A community health nurse is calculating the incidence rate of a new respiratory illness. There were 50
new cases in a population of 10,000 people over one year. What is the incidence rate per 1,000
population?
A. 2 per 1,000
B. 5 per 1,000
C. 10 per 1,000
D. 50 per 1,000
Correct ANSWER: B. 5 per 1,000
Rationale: Incidence rate is calculated as (number of new cases / total population at risk) × multiplier.
(,000) × 1,000 = 5 per 1,000.
2. A nurse is reviewing data for a county and finds 200 existing cases of diabetes out of a population of
50,000. Which measure is the nurse calculating?
A. Incidence rate
B. Mortality rate
,C. Prevalence rate
D. Attack rate
Correct ANSWER: C. Prevalence rate
Rationale: Prevalence rate measures all existing cases (both new and old) of a disease in a population at
a given time.
3. A nurse is educating a community group about the chain of infection. Which link would the nurse
identify as the focus for a client with a new diagnosis of tuberculosis?
A. Reservoir
B. Portal of exit
C. Susceptible host
D. Mode of transmission
Correct ANSWER: C. Susceptible host
Rationale: The susceptible host is the person who is at risk for infection. The client with a new diagnosis
represents the susceptible host who has acquired the infection.
4. A community health nurse is conducting a screening for hypertension at a local health fair. This
activity is an example of which level of prevention?
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Primordial prevention
Correct ANSWER: B. Secondary prevention
,Rationale: Secondary prevention focuses on early detection and treatment of disease through screening
activities, such as checking blood pressure.
5. A nurse provides a community education session on smoking cessation to high school students. This is
an example of which level of prevention?
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Quaternary prevention
Correct ANSWER: A. Primary prevention
Rationale: Primary prevention aims to prevent disease or injury before it occurs by preventing exposure
to hazards and altering unhealthy behaviors.
6. A client with a history of a stroke is receiving physical therapy to regain mobility. This is an example of
which level of prevention?
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Health promotion
Correct ANSWER: C. Tertiary prevention
Rationale: Tertiary prevention aims to soften the impact of an ongoing illness or injury by helping people
manage long-term health problems to improve function and quality of life.
, 7. A nurse is investigating a foodborne illness outbreak. Which epidemiological term describes the
number of new cases in a specific population during a specific time?
A. Prevalence
B. Incidence
C. Morbidity
D. Mortality
Correct ANSWER: B. Incidence
Rationale: Incidence refers to the number of new cases of a disease that occur in a population during a
specified period.
8. A rural county reports 24 new cases of hepatitis A in the past 4 weeks among food-service workers.
Select the ONE most significant antecedent and ONE most significant consequence.
Antecedents:
A. Inadequate public sanitation
B. High restaurant density
C. Low literacy rates
D. Cold climate
Consequences:
E. Localized epidemic
F. Restaurant closures
G. Vaccine shortage
H. Decreased birth rate
Correct Selections: A (Inadequate public sanitation) & E (Localized epidemic)
– NGN Practice Exam
100+ Questions with ANSWERs and Rationales
SECTION A: FOUNDATIONS OF COMMUNITY HEALTH & EPIDEMIOLOGY
1. A community health nurse is calculating the incidence rate of a new respiratory illness. There were 50
new cases in a population of 10,000 people over one year. What is the incidence rate per 1,000
population?
A. 2 per 1,000
B. 5 per 1,000
C. 10 per 1,000
D. 50 per 1,000
Correct ANSWER: B. 5 per 1,000
Rationale: Incidence rate is calculated as (number of new cases / total population at risk) × multiplier.
(,000) × 1,000 = 5 per 1,000.
2. A nurse is reviewing data for a county and finds 200 existing cases of diabetes out of a population of
50,000. Which measure is the nurse calculating?
A. Incidence rate
B. Mortality rate
,C. Prevalence rate
D. Attack rate
Correct ANSWER: C. Prevalence rate
Rationale: Prevalence rate measures all existing cases (both new and old) of a disease in a population at
a given time.
3. A nurse is educating a community group about the chain of infection. Which link would the nurse
identify as the focus for a client with a new diagnosis of tuberculosis?
A. Reservoir
B. Portal of exit
C. Susceptible host
D. Mode of transmission
Correct ANSWER: C. Susceptible host
Rationale: The susceptible host is the person who is at risk for infection. The client with a new diagnosis
represents the susceptible host who has acquired the infection.
4. A community health nurse is conducting a screening for hypertension at a local health fair. This
activity is an example of which level of prevention?
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Primordial prevention
Correct ANSWER: B. Secondary prevention
,Rationale: Secondary prevention focuses on early detection and treatment of disease through screening
activities, such as checking blood pressure.
5. A nurse provides a community education session on smoking cessation to high school students. This is
an example of which level of prevention?
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Quaternary prevention
Correct ANSWER: A. Primary prevention
Rationale: Primary prevention aims to prevent disease or injury before it occurs by preventing exposure
to hazards and altering unhealthy behaviors.
6. A client with a history of a stroke is receiving physical therapy to regain mobility. This is an example of
which level of prevention?
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Health promotion
Correct ANSWER: C. Tertiary prevention
Rationale: Tertiary prevention aims to soften the impact of an ongoing illness or injury by helping people
manage long-term health problems to improve function and quality of life.
, 7. A nurse is investigating a foodborne illness outbreak. Which epidemiological term describes the
number of new cases in a specific population during a specific time?
A. Prevalence
B. Incidence
C. Morbidity
D. Mortality
Correct ANSWER: B. Incidence
Rationale: Incidence refers to the number of new cases of a disease that occur in a population during a
specified period.
8. A rural county reports 24 new cases of hepatitis A in the past 4 weeks among food-service workers.
Select the ONE most significant antecedent and ONE most significant consequence.
Antecedents:
A. Inadequate public sanitation
B. High restaurant density
C. Low literacy rates
D. Cold climate
Consequences:
E. Localized epidemic
F. Restaurant closures
G. Vaccine shortage
H. Decreased birth rate
Correct Selections: A (Inadequate public sanitation) & E (Localized epidemic)
