ATI RN COMMUNITY HEALTH PROCTORED TEST
2026/2027 | Latest Version | ATI Content Mastery Series |
NCLEX-RN Competencies | Pass Guaranteed - A+ Graded
Section 1: Epidemiology & Disease Prevention (Questions 1-18)
Q1. A community health nurse is implementing a school-based program to teach
adolescents about healthy eating and physical activity to prevent obesity. This
intervention represents which level of prevention?
A. Secondary prevention
B. Tertiary prevention
C. Primary prevention
D. Quaternary prevention
Correct Answer: C. Primary prevention [CORRECT]
Rationale: Primary prevention aims to prevent disease or injury before it occurs
through health promotion and education. Teaching healthy eating and physical
activity to prevent obesity targets at-risk individuals before disease onset. Secondary
prevention involves early detection (screening), tertiary prevention manages existing
disease complications, and quaternary prevention addresses overmedicalization.
Q2. A county health department reports 150 new cases of influenza among a
population of 50,000 residents over a 3-month period. What is the incidence rate of
influenza in this community?
A. 3 per 1,000 population
B. 150 per 1,000 population
C. 0.3 per 1,000 population
D. 30 per 1,000 population
,Correct Answer: A. 3 per 1,000 population [CORRECT]
Rationale: Incidence rate = (New cases / Population at risk) × multiplier. (150 /
50,000) × 1,000 = 3 per 1,000. Option B uses the raw case count without
standardization, option C incorrectly divides by 10,000, and option D miscalculates
the rate by a factor of 10.
Q3. During an outbreak investigation at a nursing home, 45 residents develop
gastrointestinal illness after a catered lunch. Of the 60 residents who ate the potato
salad, 40 became ill. What is the attack rate among those who consumed the potato
salad?
A. 66.7%
B. 45%
C. 88.9%
D. 33.3%
Correct Answer: A. 66.7% [CORRECT]
Rationale: Attack rate = (Number ill / Number exposed) × 100 = () × 100 =
66.7%. This measures the cumulative incidence during an outbreak among a defined
exposed population. Option B uses total residents (45/100), option C reverses the
calculation, and option D uses non-ill exposed residents.
Q4. A community health nurse is conducting a breast cancer screening fair using
mammography for women aged 50-74. This activity represents which level of
prevention?
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Health promotion
Correct Answer: B. Secondary prevention [CORRECT]
,Rationale: Secondary prevention involves early detection of disease through
screening to facilitate prompt treatment and reduce severity. Mammography
screening detects breast cancer before symptoms appear. Primary prevention
prevents disease occurrence, tertiary prevention manages established disease, and
health promotion is a component of primary prevention.
Q5. In a community of 100,000 people, a nurse identifies 2,500 individuals living with
diagnosed type 2 diabetes. What is the prevalence of diabetes in this population?
A. 2.5%
B. 25%
C. 0.25%
D. 250 per 1,000
Correct Answer: A. 2.5% [CORRECT]
Rationale: Prevalence = (Existing cases / Total population) × 100 = (2,,000)
× 100 = 2.5%. Prevalence measures the proportion of a population with a disease at
a specific time. Option B is off by a factor of 10, option C is off by a factor of 10 in the
opposite direction, and option D incorrectly expresses the rate.
Q6. A community health nurse is administering tetanus boosters to adults who
sustained puncture wounds while cleaning debris after a hurricane. This intervention
represents which level of prevention?
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Primordial prevention
Correct Answer: B. Secondary prevention [CORRECT]
Rationale: Administering tetanus boosters after exposure (puncture wound) is
secondary prevention—preventing disease progression after exposure has occurred.
, Primary prevention would be routine childhood vaccination before exposure. Tertiary
prevention manages complications of established disease, and primordial prevention
addresses societal conditions before risk factors emerge.
Q7. A screening test for colon cancer has a sensitivity of 85% and a specificity of 90%.
Which statement is correct?
A. 85% of people with colon cancer will test positive (true positive rate)
B. 90% of people with colon cancer will test negative (false negative rate)
C. 85% of people without colon cancer will test negative (true negative rate)
D. 90% of people with colon cancer will test positive
Correct Answer: A. 85% of people with colon cancer will test positive (true
positive rate) [CORRECT]
Rationale: Sensitivity measures the proportion of true positives correctly identified
(those with disease who test positive). Specificity measures true negatives (those
without disease who test negative). Option B confuses specificity with false negatives,
option C confuses sensitivity with specificity, and option D incorrectly attributes
specificity to diseased individuals.
Q8. A community health nurse is developing a smoking cessation program for adults
with chronic obstructive pulmonary disease (COPD). This represents which level of
prevention?
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Primordial prevention
Correct Answer: C. Tertiary prevention [CORRECT]
Rationale: Tertiary prevention aims to reduce complications and improve quality of
life in individuals with established disease. Smoking cessation in COPD patients
2026/2027 | Latest Version | ATI Content Mastery Series |
NCLEX-RN Competencies | Pass Guaranteed - A+ Graded
Section 1: Epidemiology & Disease Prevention (Questions 1-18)
Q1. A community health nurse is implementing a school-based program to teach
adolescents about healthy eating and physical activity to prevent obesity. This
intervention represents which level of prevention?
A. Secondary prevention
B. Tertiary prevention
C. Primary prevention
D. Quaternary prevention
Correct Answer: C. Primary prevention [CORRECT]
Rationale: Primary prevention aims to prevent disease or injury before it occurs
through health promotion and education. Teaching healthy eating and physical
activity to prevent obesity targets at-risk individuals before disease onset. Secondary
prevention involves early detection (screening), tertiary prevention manages existing
disease complications, and quaternary prevention addresses overmedicalization.
Q2. A county health department reports 150 new cases of influenza among a
population of 50,000 residents over a 3-month period. What is the incidence rate of
influenza in this community?
A. 3 per 1,000 population
B. 150 per 1,000 population
C. 0.3 per 1,000 population
D. 30 per 1,000 population
,Correct Answer: A. 3 per 1,000 population [CORRECT]
Rationale: Incidence rate = (New cases / Population at risk) × multiplier. (150 /
50,000) × 1,000 = 3 per 1,000. Option B uses the raw case count without
standardization, option C incorrectly divides by 10,000, and option D miscalculates
the rate by a factor of 10.
Q3. During an outbreak investigation at a nursing home, 45 residents develop
gastrointestinal illness after a catered lunch. Of the 60 residents who ate the potato
salad, 40 became ill. What is the attack rate among those who consumed the potato
salad?
A. 66.7%
B. 45%
C. 88.9%
D. 33.3%
Correct Answer: A. 66.7% [CORRECT]
Rationale: Attack rate = (Number ill / Number exposed) × 100 = () × 100 =
66.7%. This measures the cumulative incidence during an outbreak among a defined
exposed population. Option B uses total residents (45/100), option C reverses the
calculation, and option D uses non-ill exposed residents.
Q4. A community health nurse is conducting a breast cancer screening fair using
mammography for women aged 50-74. This activity represents which level of
prevention?
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Health promotion
Correct Answer: B. Secondary prevention [CORRECT]
,Rationale: Secondary prevention involves early detection of disease through
screening to facilitate prompt treatment and reduce severity. Mammography
screening detects breast cancer before symptoms appear. Primary prevention
prevents disease occurrence, tertiary prevention manages established disease, and
health promotion is a component of primary prevention.
Q5. In a community of 100,000 people, a nurse identifies 2,500 individuals living with
diagnosed type 2 diabetes. What is the prevalence of diabetes in this population?
A. 2.5%
B. 25%
C. 0.25%
D. 250 per 1,000
Correct Answer: A. 2.5% [CORRECT]
Rationale: Prevalence = (Existing cases / Total population) × 100 = (2,,000)
× 100 = 2.5%. Prevalence measures the proportion of a population with a disease at
a specific time. Option B is off by a factor of 10, option C is off by a factor of 10 in the
opposite direction, and option D incorrectly expresses the rate.
Q6. A community health nurse is administering tetanus boosters to adults who
sustained puncture wounds while cleaning debris after a hurricane. This intervention
represents which level of prevention?
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Primordial prevention
Correct Answer: B. Secondary prevention [CORRECT]
Rationale: Administering tetanus boosters after exposure (puncture wound) is
secondary prevention—preventing disease progression after exposure has occurred.
, Primary prevention would be routine childhood vaccination before exposure. Tertiary
prevention manages complications of established disease, and primordial prevention
addresses societal conditions before risk factors emerge.
Q7. A screening test for colon cancer has a sensitivity of 85% and a specificity of 90%.
Which statement is correct?
A. 85% of people with colon cancer will test positive (true positive rate)
B. 90% of people with colon cancer will test negative (false negative rate)
C. 85% of people without colon cancer will test negative (true negative rate)
D. 90% of people with colon cancer will test positive
Correct Answer: A. 85% of people with colon cancer will test positive (true
positive rate) [CORRECT]
Rationale: Sensitivity measures the proportion of true positives correctly identified
(those with disease who test positive). Specificity measures true negatives (those
without disease who test negative). Option B confuses specificity with false negatives,
option C confuses sensitivity with specificity, and option D incorrectly attributes
specificity to diseased individuals.
Q8. A community health nurse is developing a smoking cessation program for adults
with chronic obstructive pulmonary disease (COPD). This represents which level of
prevention?
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Primordial prevention
Correct Answer: C. Tertiary prevention [CORRECT]
Rationale: Tertiary prevention aims to reduce complications and improve quality of
life in individuals with established disease. Smoking cessation in COPD patients
