Comprehensive 100-Question NGN Practice Assessment & Review Guide
Targeted Score: 98%+ | Fully Explained Rationales & NGN Case Studies
EXAM STRUCTURE & BLUEPRINT OVERVIEW:
• Total Questions: 100 Comprehensive Questions across 5 Core Domains (20 Questions per
Domain)
• Difficulty Distribution: 30% Recall (Knowledge), 50% Application (Clinical Scenario),
20% Critical Thinking / Analysis (NGN Case Studies)
• Core Domains:
1. Epidemiology & Communicable Disease Control (Q1-Q20)
2. Environmental Health & Disaster Management (Q21-Q40)
3. Community Assessment & Health Promotion (Q41-Q60)
4. Vulnerable Populations & Cultural Competency (Q61-Q80)
5. Care Management, Referral, & Quality Improvement (Q81-Q100)
• Includes full Next Generation NCLEX (NGN) clinical judgment scenarios with detailed,
100% verified rationales.
SECTION 1: EPIDEMIOLOGY & COMMUNICABLE DISEASE CONTROL (Q1 - Q20)
Q1. A public health nurse is analyzing disease transmission patterns in a local municipality.
Which of the following best describes an epidemiological vector?
A. An animate, nonhuman organism that transfers an infective agent from an infected host to
a susceptible host.
B. An inanimate object such as a medical device or doorknob that harbors pathogenic
microorganisms.
C. The human or animal portal of exit through which an infectious organism escapes.
D. The intrinsic physical characteristic of a pathogen that determines its virulence.
Correct Answer: Option A
Rationale: Vectors are living organisms (e.g., mosquitoes, ticks) that transmit infectious
pathogens between hosts. Inanimate objects are defined as fomites (Option B). Portals of exit
represent the route by which a microorganism leaves the host (Option C).
,Q2. A nurse in an outpatient clinic receives a call from a client diagnosed with active
pulmonary tuberculosis (TB). Which intervention represents secondary prevention?
A. Administering the Bacille Calmette-Guérin (BCG) vaccine to high-risk newborns.
B. Performing tuberculin skin testing (TST) on asymptomatic household contacts.
C. Referring a patient with permanent lung damage from TB to a respiratory rehab program.
D. Providing community education on proper cough etiquette and ventilation.
Correct Answer: Option B
Rationale: Secondary prevention focuses on early detection and screening of disease in high-
risk individuals before symptomatic clinical progression, making contact tracing and TST
screening secondary prevention. Immunization (Option A) and public education (Option D)
are primary preventions. Rehabilitation (Option C) represents tertiary prevention.
Q3. A community health nurse is conducting an outbreak investigation following a
localized salmonella outbreak at a church picnic. What is the nurse's first step in the
epidemiological process?
A. Formulate a hypothesis regarding the potential food source.
B. Implement widespread control measures to prevent further spread.
C. Verify the diagnosis and confirm the existence of an outbreak.
D. Evaluate the efficacy of implemented intervention strategies.
Correct Answer: Option C
Rationale: The initial step in an outbreak investigation is confirming the diagnosis and
establishing that an actual outbreak exists above expected baseline rates. Developing a
hypothesis (Option A) and implementing controls (Option B) occur after verifying case
definitions and gathering initial epidemiological evidence.
Q4. A public health nurse calculates the incidence rate of varicella in a school district.
Which formula correctly represents this epidemiological measure?
A. (Total number of existing cases at a given time / Total population) × 1,000
B. (Number of new cases occurring during a specified time period / Population at risk during
same period) × 1,000
C. (Number of deaths from varicella / Total population with varicella) × 100
D. (Number of exposed persons who become ill / Total number of exposed persons) × 100
Correct Answer: Option B
Rationale: Incidence measures the rate of NEW cases occurring in a susceptible population
over a specified time frame. Option A describes prevalence rate (total existing cases). Option
C describes case fatality rate, and Option D describes attack rate.
,Q5. A client with confirmed Hepatitis A inquires about how the virus was acquired. The
nurse explains that Hepatitis A is transmitted via which primary route?
A. Bloodborne pathogen exposure through needle sharing
B. Fecal-oral route through contaminated food or water
C. Direct inhalation of airborne respiratory droplets
D. Direct contact with infected synovial or amniotic fluid
Correct Answer: Option B
Rationale: Hepatitis A virus (HAV) is transmitted via the fecal-oral route through ingestion of
contaminated food, water, or direct contact with an infected person. Bloodborne transmission
(Option A) is characteristic of Hepatitis B and C.
Q6. A public health nurse is monitoring a college campus following a report of Neisseria
meningitidis. Which prophylactic intervention should be recommended for close contacts?
A. Immediate administration of live attenuated influenza vaccine
B. Prophylactic oral rifampin or ciprofloxacin therapy
C. Continuous intravenous vancomycin therapy for 14 days
D. Strict home isolation for 21 days without medication
Correct Answer: Option B
Rationale: Close contacts of individuals with meningococcal disease require immediate post-
exposure antimicrobial prophylaxis (such as rifampin, ciprofloxacin, or ceftriaxone) to
eradicate nasopharyngeal carriage. Isolation alone (Option D) does not clear carriage or offer
prophylaxis.
Q7. A nurse working in a travel clinic provides instruction to a client visiting a region
endemic for malaria. Which level of prevention is represented by prescribing prophylactic
antimalarial medication?
A. Primary prevention
B. Secondary prevention
C. Tertiary prevention
D. Quaternary prevention
Correct Answer: Option A
Rationale: Administering prophylactic medications prior to disease exposure prevents the
occurrence of disease, fitting the exact definition of primary prevention. Secondary prevention
involves screening, and tertiary prevention involves managing established disease.
, Q8. A occupational nurse is evaluating a cluster of employees presenting with acute
respiratory symptoms. The nurse notes that the office building recently underwent HVAC
maintenance. Which pathogen is most likely responsible?
A. Mycoplasma pneumoniae
B. Legionella pneumophila
C. Bordetella pertussis
D. Mycobacterium avium complex
Correct Answer: Option B
Rationale: Legionella pneumophila is an environmental bacterium that thrives in warm water
systems, cooling towers, and HVAC systems, causing Legionnaires' disease via aerosolized
water droplets. Pertussis and Mycoplasma are transmitted person-to-person via respiratory
droplets.
Q9. A public health nurse receives notification of a case of pertussis in a middle school
student. Which infection control measure is essential for the nurse to implement?
A. Enforce droplet precautions for 5 days after the initiation of appropriate antibiotic therapy.
B. Place the affected student in negative-pressure air isolation immediately upon return.
C. Restrict all exposed asymptomatic classmates from school attendance for 30 days.
D. Administer tetanus toxoid vaccine to all symptomatic classmates immediately.
Correct Answer: Option A
Rationale: Pertussis is transmitted via large respiratory droplets; patients remain contagious
until completing 5 days of effective antibiotic therapy (e.g., azithromycin). Airborne negative
pressure (Option B) is required for TB or varicella, not pertussis.
Q10. A nurse is preparing a community health presentation on vector-borne diseases.
Which instruction should be included to prevent Lyme disease transmission?
A. Apply DEET-containing insect repellent and wear light-colored, long-sleeved clothing
when outdoors.
B. Avoid eating undercooked pork or wild game meat.
C. Boil municipal drinking water for at least 3 minutes during summer months.
D. Wear a fitted N95 respirator when working in wooded or brushy environments.
Correct Answer: Option A
Rationale: Lyme disease is transmitted by Ixodes ticks; primary prevention includes using
insect repellents (DEET or picaridin) and wearing light-colored, protective clothing to spot
ticks easily. Undercooked meat (Option B) is linked to trichinosis or toxoplasmosis.