ATI RN COMMUNITY HEALTH CMS EXAM 2026 Complete Practice Exam
– 200 Questions with Correct Answers & Detailed Rationales
Assessment Technologies Institute (ATI) RN COMMUNITY HEALTH CMS EXAM 2026 Complete Practice Exam – 200 Questions with Correct Answers & Detailed
Rationales
A practice question bank for Assessment Technologies Institute (ATI) RN COMMUNITY HEALTH CMS EXAM 2026 Complete Practice Exam – 200 Questions with
Correct Answers & Detailed Rationales, intended to help test-takers review key concepts and prepare with practice questions and answer rationales.
---
EXAM TYPE: ATI Content Mastery Series (CMS) RN Community Health Proctored Exam
YEAR: 2025/2026 Update
FORMAT: Questions are presented in multiple-choice format with the correct answer indicated,
followed by a detailed rationale explaining the community health nursing principles,
epidemiology, and public health concepts.
---
SECTION 1: EPIDEMIOLOGY & DISEASE PREVENTION (Questions 1-35)
---
QUESTION 1
A community health nurse is conducting an epidemiological investigation of a communicable
disease outbreak. Which of the following actions should the nurse take first?
A) Implement control measures to prevent further transmission
B) Confirm the diagnosis of reported cases
C) Identify the source of the outbreak
D) Define and identify cases
,ANSWER: D
RATIONALE: In outbreak investigation, the first step is to define and identify cases to establish
the existence of an outbreak. This involves creating a case definition and actively finding cases.
Only after cases are identified can the nurse proceed to confirm diagnoses, identify sources, and
implement control measures .
---
QUESTION 2
A nurse is calculating the incidence rate of influenza in a community of 50,000 people. During
the past year, 500 new cases were reported. What is the incidence rate per 1,000 population?
A) 5 per 1,000
B) 10 per 1,000
C) 50 per 1,000
D) 100 per 1,000
ANSWER: B
RATIONALE: Incidence rate measures NEW cases occurring during a specific time period.
Calculation: (Number of new cases / Total population) × 1,000 = (,000) × 1,000 = 10 per
1,000 population .
---
QUESTION 3
,Which of the following best describes the difference between active and passive surveillance?
A) Active surveillance relies on healthcare providers reporting cases; passive surveillance
involves health departments seeking cases
B) Active surveillance involves health departments seeking cases; passive surveillance relies on
healthcare providers reporting cases
C) Active surveillance is used for chronic diseases; passive surveillance is used for acute diseases
D) Active surveillance requires laboratory confirmation; passive surveillance requires clinical
diagnosis only
ANSWER: B
RATIONALE: Active surveillance involves public health staff proactively contacting healthcare
providers or reviewing records to identify cases. Passive surveillance relies on healthcare
providers voluntarily reporting cases to health departments. Active surveillance is more
complete but resource-intensive .
---
QUESTION 4
A nurse is teaching a community group about levels of prevention. Which activity represents
tertiary prevention?
A) Administering immunizations to children
B) Providing diabetes self-management education to a client with newly diagnosed diabetes
C) Screening for hypertension at a health fair
D) Teaching safe sex practices to teenagers
, ANSWER: B
RATIONALE: Tertiary prevention focuses on reducing complications and disability in people with
established disease. Diabetes self-management education helps individuals manage their
condition and prevent complications. Primary prevention (A, D) prevents disease before it
occurs. Secondary prevention (C) involves early detection and screening .
---
QUESTION 5
The epidemiologic triangle consists of which three elements?
A) Agent, host, and environment
B) Person, place, and time
C) Incidence, prevalence, and mortality
D) Primary, secondary, and tertiary prevention
ANSWER: A
RATIONALE: The epidemiologic triangle is a model for understanding disease causation. It
includes the agent (cause of disease), host (organism harboring the disease), and environment
(external factors that allow disease transmission). Person, place, and time (B) are elements of
descriptive epidemiology .
---
QUESTION 6
– 200 Questions with Correct Answers & Detailed Rationales
Assessment Technologies Institute (ATI) RN COMMUNITY HEALTH CMS EXAM 2026 Complete Practice Exam – 200 Questions with Correct Answers & Detailed
Rationales
A practice question bank for Assessment Technologies Institute (ATI) RN COMMUNITY HEALTH CMS EXAM 2026 Complete Practice Exam – 200 Questions with
Correct Answers & Detailed Rationales, intended to help test-takers review key concepts and prepare with practice questions and answer rationales.
---
EXAM TYPE: ATI Content Mastery Series (CMS) RN Community Health Proctored Exam
YEAR: 2025/2026 Update
FORMAT: Questions are presented in multiple-choice format with the correct answer indicated,
followed by a detailed rationale explaining the community health nursing principles,
epidemiology, and public health concepts.
---
SECTION 1: EPIDEMIOLOGY & DISEASE PREVENTION (Questions 1-35)
---
QUESTION 1
A community health nurse is conducting an epidemiological investigation of a communicable
disease outbreak. Which of the following actions should the nurse take first?
A) Implement control measures to prevent further transmission
B) Confirm the diagnosis of reported cases
C) Identify the source of the outbreak
D) Define and identify cases
,ANSWER: D
RATIONALE: In outbreak investigation, the first step is to define and identify cases to establish
the existence of an outbreak. This involves creating a case definition and actively finding cases.
Only after cases are identified can the nurse proceed to confirm diagnoses, identify sources, and
implement control measures .
---
QUESTION 2
A nurse is calculating the incidence rate of influenza in a community of 50,000 people. During
the past year, 500 new cases were reported. What is the incidence rate per 1,000 population?
A) 5 per 1,000
B) 10 per 1,000
C) 50 per 1,000
D) 100 per 1,000
ANSWER: B
RATIONALE: Incidence rate measures NEW cases occurring during a specific time period.
Calculation: (Number of new cases / Total population) × 1,000 = (,000) × 1,000 = 10 per
1,000 population .
---
QUESTION 3
,Which of the following best describes the difference between active and passive surveillance?
A) Active surveillance relies on healthcare providers reporting cases; passive surveillance
involves health departments seeking cases
B) Active surveillance involves health departments seeking cases; passive surveillance relies on
healthcare providers reporting cases
C) Active surveillance is used for chronic diseases; passive surveillance is used for acute diseases
D) Active surveillance requires laboratory confirmation; passive surveillance requires clinical
diagnosis only
ANSWER: B
RATIONALE: Active surveillance involves public health staff proactively contacting healthcare
providers or reviewing records to identify cases. Passive surveillance relies on healthcare
providers voluntarily reporting cases to health departments. Active surveillance is more
complete but resource-intensive .
---
QUESTION 4
A nurse is teaching a community group about levels of prevention. Which activity represents
tertiary prevention?
A) Administering immunizations to children
B) Providing diabetes self-management education to a client with newly diagnosed diabetes
C) Screening for hypertension at a health fair
D) Teaching safe sex practices to teenagers
, ANSWER: B
RATIONALE: Tertiary prevention focuses on reducing complications and disability in people with
established disease. Diabetes self-management education helps individuals manage their
condition and prevent complications. Primary prevention (A, D) prevents disease before it
occurs. Secondary prevention (C) involves early detection and screening .
---
QUESTION 5
The epidemiologic triangle consists of which three elements?
A) Agent, host, and environment
B) Person, place, and time
C) Incidence, prevalence, and mortality
D) Primary, secondary, and tertiary prevention
ANSWER: A
RATIONALE: The epidemiologic triangle is a model for understanding disease causation. It
includes the agent (cause of disease), host (organism harboring the disease), and environment
(external factors that allow disease transmission). Person, place, and time (B) are elements of
descriptive epidemiology .
---
QUESTION 6
