A-IPC Exam Study Guide (Practice Test #1) 2025/2026 – 135
Reviewed Questions with 100% Verified Answers
Ace your Certification Board of Infection Control and Epidemiology entry-level exam
with this comprehensive A-IPC Practice Test #1 study guide. This premium resource
features 135 thoroughly reviewed questions tracking key exam domains like
epidemiology calculations, isolation precautions, and the Spaulding classification
system. Every question includes 100% verified answers and deep rationales to solidify
your infection prevention clinical reasoning.
QUESTION 1
A nurse is caring for a patient with a suspected healthcare-associated infection (HAI).
Which of the following is the MOST important initial step in the infection prevention
process?
A. Initiate contact precautions immediately
B. Collect appropriate specimens for culture before starting antibiotics
C. Notify the infection preventionist within 24 hours
D. Begin broad-spectrum antibiotics empirically
Correct Answer: B. Collect appropriate specimens for culture before starting
antibiotics
Rationale: Collecting specimens before initiating antibiotics is critical to identify the
causative organism and its antimicrobial susceptibility. Starting antibiotics before cultures
can lead to false-negative results and inappropriate treatment. Notifying the infection
preventionist and initiating precautions are important but secondary to obtaining accurate
diagnostic specimens.
QUESTION 2
Which of the following is the PRIMARY purpose of surveillance in infection prevention
and control?
,A. To identify patients with active infections
B. To monitor trends and implement preventive measures
C. To ensure compliance with hand hygiene protocols
D. To reduce hospital readmission rates
Correct Answer: B. To monitor trends and implement preventive measures
Rationale: Surveillance is the ongoing, systematic collection, analysis, and interpretation of
health data to plan, implement, and evaluate public health interventions. Its primary
purpose is to identify trends and guide preventive strategies, not just to identify individual
cases or enforce compliance.
QUESTION 3
A patient develops a urinary tract infection 5 days after insertion of a Foley catheter. This
is classified as:
A. Community-acquired infection
B. Healthcare-associated infection
C. Iatrogenic infection
D. Opportunistic infection
Correct Answer: B. Healthcare-associated infection
Rationale: Healthcare-associated infections (HAIs) are infections acquired during the
course of receiving healthcare that were not present at the time of admission. This
patient's UTI developed after catheter insertion during hospitalization, meeting the criteria
for an HAI.
QUESTION 4
Which of the following is the MOST effective method for preventing healthcare-
associated infections?
A. Use of personal protective equipment (PPE)
B. Hand hygiene
,C. Environmental cleaning
D. Antimicrobial stewardship
Correct Answer: B. Hand hygiene
Rationale: Hand hygiene is the single most effective measure for preventing the
transmission of healthcare-associated pathogens. While PPE, environmental cleaning, and
antimicrobial stewardship are all important components of infection prevention, hand
hygiene remains the cornerstone of all infection control practices.
QUESTION 5
The Chain of Infection consists of which of the following elements in the correct order?
A. Susceptible host → Portal of entry → Mode of transmission → Reservoir → Portal of
exit → Infectious agent
B. Infectious agent → Reservoir → Portal of exit → Mode of transmission → Portal of
entry → Susceptible host
C. Reservoir → Infectious agent → Portal of exit → Mode of transmission → Portal of
entry → Susceptible host
D. Mode of transmission → Portal of entry → Susceptible host → Infectious agent →
Reservoir → Portal of exit
Correct Answer: B. Infectious agent → Reservoir → Portal of exit → Mode of
transmission → Portal of entry → Susceptible host
Rationale: The Chain of Infection is a model used to understand how infections spread. It
begins with the infectious agent, which resides in a reservoir, exits through a portal of exit,
is transmitted via a mode of transmission, enters a new host through a portal of entry, and
infects a susceptible host. Breaking any link prevents infection.
QUESTION 6
A patient with active pulmonary tuberculosis requires which type of transmission-based
precaution?
, A. Contact precautions
B. Droplet precautions
C. Airborne precautions
D. Standard precautions only
Correct Answer: C. Airborne precautions
Rationale: Pulmonary tuberculosis is transmitted via airborne droplet nuclei that remain
suspended in the air and can be inhaled. Airborne precautions require an airborne
infection isolation room (AIIR) with negative pressure, and healthcare personnel must wear
N95 or higher-level respiratory protection.
QUESTION 7
Which of the following organisms requires Contact Precautions in a healthcare setting?
A. Mycobacterium tuberculosis
B. Clostridioides difficile
C. Influenza virus
D. Neisseria meningitidis
Correct Answer: B. Clostridioides difficile
Rationale: Clostridioides difficile is transmitted via the fecal-oral route through contact
with contaminated surfaces or equipment. Contact precautions include the use of gown
and gloves when entering the patient's room. C. difficile spores are resistant to alcohol-
based hand sanitizers, so handwashing with soap and water is required.
QUESTION 8
Which type of precaution should be implemented for a patient with confirmed
influenza?
A. Contact precautions
B. Droplet precautions
Reviewed Questions with 100% Verified Answers
Ace your Certification Board of Infection Control and Epidemiology entry-level exam
with this comprehensive A-IPC Practice Test #1 study guide. This premium resource
features 135 thoroughly reviewed questions tracking key exam domains like
epidemiology calculations, isolation precautions, and the Spaulding classification
system. Every question includes 100% verified answers and deep rationales to solidify
your infection prevention clinical reasoning.
QUESTION 1
A nurse is caring for a patient with a suspected healthcare-associated infection (HAI).
Which of the following is the MOST important initial step in the infection prevention
process?
A. Initiate contact precautions immediately
B. Collect appropriate specimens for culture before starting antibiotics
C. Notify the infection preventionist within 24 hours
D. Begin broad-spectrum antibiotics empirically
Correct Answer: B. Collect appropriate specimens for culture before starting
antibiotics
Rationale: Collecting specimens before initiating antibiotics is critical to identify the
causative organism and its antimicrobial susceptibility. Starting antibiotics before cultures
can lead to false-negative results and inappropriate treatment. Notifying the infection
preventionist and initiating precautions are important but secondary to obtaining accurate
diagnostic specimens.
QUESTION 2
Which of the following is the PRIMARY purpose of surveillance in infection prevention
and control?
,A. To identify patients with active infections
B. To monitor trends and implement preventive measures
C. To ensure compliance with hand hygiene protocols
D. To reduce hospital readmission rates
Correct Answer: B. To monitor trends and implement preventive measures
Rationale: Surveillance is the ongoing, systematic collection, analysis, and interpretation of
health data to plan, implement, and evaluate public health interventions. Its primary
purpose is to identify trends and guide preventive strategies, not just to identify individual
cases or enforce compliance.
QUESTION 3
A patient develops a urinary tract infection 5 days after insertion of a Foley catheter. This
is classified as:
A. Community-acquired infection
B. Healthcare-associated infection
C. Iatrogenic infection
D. Opportunistic infection
Correct Answer: B. Healthcare-associated infection
Rationale: Healthcare-associated infections (HAIs) are infections acquired during the
course of receiving healthcare that were not present at the time of admission. This
patient's UTI developed after catheter insertion during hospitalization, meeting the criteria
for an HAI.
QUESTION 4
Which of the following is the MOST effective method for preventing healthcare-
associated infections?
A. Use of personal protective equipment (PPE)
B. Hand hygiene
,C. Environmental cleaning
D. Antimicrobial stewardship
Correct Answer: B. Hand hygiene
Rationale: Hand hygiene is the single most effective measure for preventing the
transmission of healthcare-associated pathogens. While PPE, environmental cleaning, and
antimicrobial stewardship are all important components of infection prevention, hand
hygiene remains the cornerstone of all infection control practices.
QUESTION 5
The Chain of Infection consists of which of the following elements in the correct order?
A. Susceptible host → Portal of entry → Mode of transmission → Reservoir → Portal of
exit → Infectious agent
B. Infectious agent → Reservoir → Portal of exit → Mode of transmission → Portal of
entry → Susceptible host
C. Reservoir → Infectious agent → Portal of exit → Mode of transmission → Portal of
entry → Susceptible host
D. Mode of transmission → Portal of entry → Susceptible host → Infectious agent →
Reservoir → Portal of exit
Correct Answer: B. Infectious agent → Reservoir → Portal of exit → Mode of
transmission → Portal of entry → Susceptible host
Rationale: The Chain of Infection is a model used to understand how infections spread. It
begins with the infectious agent, which resides in a reservoir, exits through a portal of exit,
is transmitted via a mode of transmission, enters a new host through a portal of entry, and
infects a susceptible host. Breaking any link prevents infection.
QUESTION 6
A patient with active pulmonary tuberculosis requires which type of transmission-based
precaution?
, A. Contact precautions
B. Droplet precautions
C. Airborne precautions
D. Standard precautions only
Correct Answer: C. Airborne precautions
Rationale: Pulmonary tuberculosis is transmitted via airborne droplet nuclei that remain
suspended in the air and can be inhaled. Airborne precautions require an airborne
infection isolation room (AIIR) with negative pressure, and healthcare personnel must wear
N95 or higher-level respiratory protection.
QUESTION 7
Which of the following organisms requires Contact Precautions in a healthcare setting?
A. Mycobacterium tuberculosis
B. Clostridioides difficile
C. Influenza virus
D. Neisseria meningitidis
Correct Answer: B. Clostridioides difficile
Rationale: Clostridioides difficile is transmitted via the fecal-oral route through contact
with contaminated surfaces or equipment. Contact precautions include the use of gown
and gloves when entering the patient's room. C. difficile spores are resistant to alcohol-
based hand sanitizers, so handwashing with soap and water is required.
QUESTION 8
Which type of precaution should be implemented for a patient with confirmed
influenza?
A. Contact precautions
B. Droplet precautions
