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CBIC Certified Infection Control Exam Question and Answers

CBIC Certified Infection Control Exam

Last Update Oct 15, 2025
Total Questions : 172

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Questions 1

A healthcare personnel has an acute group A streptococcal throat infection. What is the earliest recommended time that this person may return to work after receiving appropriate antibiotic therapy?

Options:

A.  

8 hours

B.  

24 hours

C.  

48 hours

D.  

72 hours

Discussion 0
Questions 2

Ongoing education for the Infection Preventionist (IP) is MOST important because

Options:

A.  

the healthcare environment is fast-paced with frequent changes.

B.  

motivation to change comes from the Management Team.

C.  

self-directed learning is not a major force for the adult learner.

D.  

it is necessary to maintain a competitive edge.

Discussion 0
Questions 3

The Infection Prevention and Control Committee is concerned about an outbreak of Serratia marcescens in the intensive care unit. If an environmental source is suspected, the BEST method to validate this suspicion is to

Options:

A.  

apply fluorescent gel.

B.  

use ATP system.

C.  

obtain surface cultures.

D.  

perform direct practice observation.

Discussion 0
Questions 4

Which of the following BEST demonstrates the effectiveness of a program targeted at reducing central-line associated bloodstream infections (CLABSIs) in an intensive care unit (ICU)?

Options:

A.  

A 25% decrease in the length of stay in the ICU related to CLABSIs

B.  

A 25% reduction in the incidence of CLABSIs over 6 months

C.  

A 30% decrease in total costs related to treatment of CLABSIs over 12 months

D.  

A 30% reduction in the use of antibiotic-impregnated central catheters over 6 months

Discussion 0
Questions 5

In a retrospective case-control study, the initial case group is composed of persons

Options:

A.  

with the disease

B.  

without the disease.

C.  

with the risk factor under investigation

D.  

without the risk factor under investigation

Discussion 0
Questions 6

An infection preventionist should collaborate with a public health agency in primary prevention efforts by:

Options:

A.  

Conducting outbreak investigations.

B.  

Performing surveillance for tuberculosis through tuberculin skin test.

C.  

Promoting vaccination of health care workers and patients.

D.  

Offering blood and body fluid post-exposure prophylaxis.

Discussion 0
Questions 7

A new hospital disinfectant with a 3-minute contact time has been purchased by Environmental Services. The disinfectant will be rolled out across the patient care 3-minute contact time has been purchased by Environmental Services. The disinfectant will be rolled out across the patient care areas. They are concerned about the high cost of the disinfectant. What advice can the infection preventionist provide?

Options:

A.  

Use the new disinfectant for patient washrooms only.

B.  

Use detergents on the floors in patient rooms.

C.  

Use detergents on smooth horizontal surfaces.

D.  

Use new disinfectant for all surfaces in the patient room.

Discussion 0
Questions 8

A suspected measles case has been identified in an outpatient clinic without an airborne infection isolation room (AIIR). Which of the following is the BEST course of action?

Options:

A.  

Patient should be sent home

B.  

Staff should don a respirator, gown, and face shield.

C.  

Patient should be offered the Measles. Mumps, Rubella (MMR) vaccine

D.  

Patient should be masked and placed in a private room with door closed.

Discussion 0
Questions 9

An infection preventionist has been asked to consult on disinfectant products for use in a long term care home. What should their primary concern be?

Options:

A.  

Patient care items are cleaned whenever visibly soiled.

B.  

An appropriate disinfectant should be available whenever items are used on patients known to be colonized with multi drug resistant organisms.

C.  

Disinfectant products should be compatible with the patient care devices used by the facility.

D.  

Disinfectant products should have a mild odor to reduce allergy concerns.

Discussion 0
Questions 10

Which of the following descriptions accurately describes a single-use medical device?

Options:

A.  

A device which can be used on a single patient

B.  

A device that is sterilized and can be used again on the same patient

C.  

A device used on a patient and reprocessed prior to being used again

D.  

A device used one time on a patient during a procedure and then discarded

Discussion 0
Questions 11

A team was created to determine what has contributed to the recent increase in catheter associated urinary tract infections (CAUTIs). What quality tool should the team use?

Options:

A.  

Gap analysis

B.  

Fishbone diagram

C.  

Plan, do, study, act (PDSA)

D.  

Failure mode and effect analysis (FMEA)

Discussion 0
Questions 12

A hospital is experiencing an increase in vancomycin-resistant Enterococcus (VRE) infections in the hematology-oncology unit. Which of the following interventions is MOST effective in halting the spread of VRE in this high-risk setting?

Options:

A.  

Screening all patients on admission and placing positive patients in isolation.

B.  

Restricting the use of vancomycin for all patients in the hospital.

C.  

Implementing a hand hygiene compliance audit and feedback system.

D.  

Conducting environmental sampling for VRE contamination weekly.

Discussion 0
Questions 13

A surgeon is beginning a new procedure in the facility within the next two weeks and requires loaner instruments. Infection prevention processes should ensure that

Options:

A.  

items arrive in time for immediate use steam sterilization.

B.  

instruments are able to be used prior to the biological indicator results.

C.  

the planning process takes place after the instruments have arrived.

D.  

staff education related to loaner instrument reprocessing has occurred.

Discussion 0
Questions 14

A healthcare worker experiences a percutaneous exposure to a patient with untreated HIV. The next step is to:

Options:

A.  

Initiate HIV post-exposure prophylaxis (PEP) within 2 hours.

B.  

Wait for HIV test results before starting treatment.

C.  

Offer post-exposure prophylaxis only if symptoms develop.

D.  

Retest for HIV after 6 months before deciding on PEP.

Discussion 0
Questions 15

When assessing a patient’s infection prevention and control educational needs, it is necessary to FIRST determine the patient’s

Options:

A.  

severity of illness.

B.  

educational background.

C.  

duration of hospitalization.

D.  

baseline knowledge of the subject.

Discussion 0
Questions 16

Infection Prevention and Control identified a cluster of Aspergillus fumigatus infections in the transplant unit. The infection preventionist (IP) meets with the unit director and Environmental Services director to begin investigation. What information does the IP need from the Environmental Services director?

Options:

A.  

Date of last terminal clean of the infected patient rooms

B.  

Hospital grade disinfectant used on the transplant unit

C.  

Use of dust mitigating strategies during floor care

D.  

Date of the last cleaning of the fish tank in the waiting room

Discussion 0
Questions 17

Which of the following patients with human immunodeficiency virus infection requires Airborne precautions?

Options:

A.  

24-year-old male newly diagnosed with a CD4 count of 70

B.  

28-year-old female with Mycobacterium avium in sputum

C.  

36-year-old male with cryptococcal meningitis

D.  

46-year-old female with a cavitary lesion in upper lobe

Discussion 0
Questions 18

Which of the following activities will BEST prepare a newly hired infection preventionist to present information at the facility’s orientation program?

Options:

A.  

Observing other departments’ orientation presentations

B.  

Meeting with the facility’s leadership

C.  

Reviewing principles of adult learning

D.  

Administering tuberculin skin tests to orientees

Discussion 0
Questions 19

Peripherally inserted central catheter (PICC)-associated bloodstream infections (BSIs) have been increasing over the past four months. Which of the following interventions is MOST likely to have contributed to the increase?

Options:

A.  

Use of chlorhexidine skin antisepsis during insertion of the PICC

B.  

Daily bathing adult intensive care unit patients with chlorhexidine

C.  

Replacement of the intravenous administration sets every 72 hours

D.  

Use of a positive pressure device on the PICC

Discussion 0
Questions 20

An immunocompetent patient is diagnosed with active tuberculosis (TB). Which of the following sites of the disease is MOST likely to result in transmission to healthcare personnel?

Options:

A.  

Renal TB

B.  

Miliary TB

C.  

Laryngeal TB

D.  

Tuberculous meningitis

Discussion 0
Questions 21

An infection preventionist is reviewing employee health immunization policies. What is the recommendation for tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis (Tdap) for a 55-year-old nurse who received all childhood vaccinations?

Options:

A.  

One dose of Tdap vaccine

B.  

Two doses of Tdap vaccine at least 14 days apart

C.  

Two doses of Tdap vaccine at least 28 days apart

D.  

No additional vaccination is recommended

Discussion 0
Questions 22

Which of the following operating suite design features is LEAST important for the prevention of infection?

Options:

A.  

Type of floor material

B.  

Positive pressure air handling

C.  

Placement of sinks for surgical scrubs

D.  

Control of traffic and traffic flow patterns

Discussion 0
Questions 23

When evaluating environmental cleaning and disinfectant products as a part of the product evaluation committee, which of the following is responsible for providing information regarding clinical trials?

Options:

A.  

Infection Preventionist

B.  

Clinical representatives

C.  

Environmental Services

D.  

Manufacturer representatives

Discussion 0
Questions 24

Which of the following is the BEST strategy for reducing bloodstream infections associated with central venous catheters?

Options:

A.  

Routine replacement of central lines every 7 days.

B.  

Use of chlorhexidine-impregnated dressings.

C.  

Daily blood cultures for patients with central lines.

D.  

Use of povidone-iodine instead of chlorhexidine for skin antisepsis.

Discussion 0
Questions 25

Surgical site infection (SSI) data for the previous quarter reveal the following numbers. The surgeon with the highest infection rate is Doctor

Options:

A.  

Brown

B.  

Jones.

C.  

Smith

D.  

White

Discussion 0
Questions 26

Occupational Health contacts the Infection Preventionist (IP) regarding exposure of a patient to an employee's blood during surgery. The employee is negative for bloodborne pathogens. What is theNEXT step regarding informing the patient of the exposure?

Options:

A.  

Disclose the exposure to the patient's surgeon and allow surgeon to determine if patient should be informed

B.  

Disclose the exposure to the patient with the information that the staff member is negative for all bloodborne pathogens

C.  

Since this was a solid needle and not a hollow bore needed, follow up is not required or need to be disclosed

D.  

The patient does not need to be informed since the employee is negative for all bloodborne pathogens

Discussion 0
Questions 27

When conducting a literature search which of the following study designs may provide the best evidence of a direct causal relationship between the experimental factor and the outcome?

Options:

A.  

A case report

B.  

A descriptive study

C.  

A case control study

D.  

A randomized-controlled trial

Discussion 0
Questions 28

The BEST roommate selection for a patient with active shingles would be a patient who has had

Options:

A.  

varicella vaccine.

B.  

treatment with acyclovir

C.  

a history of herpes simplex.

D.  

varicclla zoster immunoglobulin

Discussion 0
Questions 29

Which of the following management activities should be performed FIRST?

Options:

A.  

Evaluate project results

B.  

Establish goals

C.  

Plan and organize activities

D.  

Assign responsibility for projects

Discussion 0
Questions 30

Operating room records indicate that 130 joint replacements have been performed. These include 70 total hip replacements, 55 total knee replacements, and 5 shoulder replacements. Two postoperative surgical site infections (SSIs) were identified in total hip replacements. What is the infection rate/100 procedures for total hip replacements?

Options:

A.  

1.5

B.  

2.9

C.  

3.3

D.  

3.6

Discussion 0
Questions 31

The infection preventionist (IP) is working with the Product Evaluation Committee to select a sporicidal disinfectant for Clostridioides difficile. An effective disinfectant for the IP to recommend is

Options:

A.  

quaternary ammonium compound.

B.  

phenolic.

C.  

isopropyl alcohol.

D.  

sodium hypochlorite.

Discussion 0
Questions 32

Which performance improvement model should the infection preventionist use to aid in the evaluation of the infection control plan?

Options:

A.  

Six Sigma

B.  

Failure mode and effects analysis

C.  

Plan, Do, Study, Act

D.  

Root Cause Analysis

Discussion 0
Questions 33

Hand-hygiene audits in a long-term care facility have demonstrated consistently low levels of staffcompliance. An infection preventionist is planning an education program to try to improve hand-hygiene rates. Regarding assessment of the effectiveness of the education program, which of the following is true?

Options:

A.  

A summative evaluation will accurately reflect the extent to which participants will change their hand-hygiene practices.

B.  

Repeated observations of staff will be required in order to demonstrate that the program has been effective.

C.  

A change between pre- and post-test scores correlates well with the expected change in hand-hygiene compliance.

D.  

An evaluation of the program is not required if the program is mandatory.

Discussion 0
Questions 34

The infection preventionist understands that the heating, ventilation and air conditioning (HVAC) systems in the facility can be a risk factor for healthcare-acquired infections. What is the MOST likely risk from the HVAC system for patients in a Pediatric Oncology unit?

Options:

A.  

Methicillin-resistant Staphylococcus aureus (MRSA)

B.  

Norovirus

C.  

Aspergillus spp.

D.  

Clostridioides difficile

Discussion 0
Questions 35

Healthcare workers are MOST likely to benefit from infection prevention education if the Infection Preventionist (IP)

Options:

A.  

brings in speakers who are recognized experts.

B.  

plans the educational program well ahead of time.

C.  

audits practices and identifies deficiencies.

D.  

involves the staff in determining the content.

Discussion 0
Questions 36

A 2-yoar-old girl is admitted with a fractured tibia. At birth, she was diagnosed with congenital cytomegalovirus (CMV). Which of the following barrier precautions is appropriate for healthcare personnel caring for her?

Options:

A.  

Wear masks and gloves

B.  

Wear gloves when handling body fluids

C.  

No barrier precautions are needed

D.  

Use gowns, masks, gloves, and a private room

Discussion 0
Questions 37

A task force formed to focus on Clostridioides difficile infections (CDIs). The topic of the meeting discussed selecting the correct germicidal wipe. What important factor does the infection preventionist review?

Options:

A.  

Cost of a case of wipes

B.  

Size of individual wipes

C.  

Time the surface remains wet

D.  

Correct disposal of the wipe

Discussion 0
Questions 38

Which of the following statements describes the MOST important consideration of an infection preventionist when assessing the effectiveness of an infection control action plan?

Options:

A.  

Re-evaluate the action plan every three years.

B.  

Update the plan before the risk assessment is completed.

C.  

Develop a timeline and assign responsibilities for the stated action.

D.  

Monitor and validate the related outcome and process measures.

Discussion 0
Questions 39

The expectation to call out or speak up when an infection prevention lapse is observed is an example of

Options:

A.  

implementation of human factors.

B.  

honest disclosure of a safety event.

C.  

a blaming and shaming safety culture.

D.  

a safety culture with reciprocal accountability.

Discussion 0
Questions 40

An outbreak of carbapenem-resistant Klebsiella pneumoniae is linked to duodenoscopes. What is the infection preventionist’s PRIORITY intervention?

Options:

A.  

Perform targeted patient screening for Klebsiella pneumoniae.

B.  

Implement immediate enhanced reprocessing procedures and audit compliance.

C.  

Discontinue the use of duodenoscopes until further notice.

D.  

Conduct whole-genome sequencing of outbreak isolates.

Discussion 0
Questions 41

A 17-year-old presents to the Emergency Department with fever, stiff neck, and vomiting. A lumbar puncture is done. The Gram stain shows Gram negative diplocooci. Presumptive identification of the organism is

Options:

A.  

Haemophilus influenzae

B.  

Neisseria meningitidis

C.  

Listeria monocytogenes

D.  

Streptococcus pneumoniae

Discussion 0
Questions 42

Given the formula for calculating incidence rates, the Y represents which of the following?

Options:

A.  

Population served

B.  

Number of infected patients

C.  

Population at risk

D.  

Number of events

Discussion 0
Questions 43

Which of the following strategies is MOST effective in reducing surgical site infections (SSI) in orthopedic procedures?

Options:

A.  

Perioperative normothermia maintenance.

B.  

Routine intraoperative wound irrigation with povidone-iodine.

C.  

Administration of prophylactic antibiotics postoperatively for 48 hours.

D.  

Use of sterile adhesive wound dressings for 10 days postoperatively.

Discussion 0
Questions 44

An infection control manager is training a new infection preventionist. In discussing surveillance strategies, which of the following types of hospital infection surveillance usually provides maximum benefit with minimum resources?

Options:

A.  

High-risk patient focus

B.  

Antibiotic monitoring

C.  

Prevalence surveys

D.  

Nursing care plan review

Discussion 0
Questions 45

Which of the following active surveillance screening cultures would be appropriate for carbapenem-resistant Enterobacterales (previously known as carbapenem-resistant Enterobacteriaceae) (CRE)?

Options:

A.  

Rectal or peri-rectal cultures

B.  

Nares or axillary cultures

C.  

Abscess or blood cultures

D.  

Throat or nasopharyngeal cultures

Discussion 0
Questions 46

Which of the following processes is MOST important for the infection preventionist (IP) to review when evaluating a third-party reprocessor for single-use devices?

Options:

A.  

Observe all steps for reprocessing.

B.  

Review the facility's blueprints and policies.

C.  

Ensure air and water cultures are performed regularly.

D.  

Obtain feedback from other IPs who use the reprocessor.

Discussion 0
Questions 47

Which of the following processes is essential for endoscope reprocessing?

Options:

A.  

Intermediate level disinfection and contact time

B.  

Pre-cleaning, leak testing, and manual cleaning

C.  

Inspection using a borescope and horizontal storage

D.  

Leak testing, manual cleaning, and low level disinfection

Discussion 0
Questions 48

A hospital experiencing an increase in catheter-associated urinary tract infections (CAUTI)implements a quality improvement initiative. Which of the following interventions is MOST effective in reducing CAUTI rates?

Options:

A.  

Routine urine cultures for all catheterized patients every 48 hours.

B.  

Implementing nurse-driven protocols for early catheter removal.

C.  

Replacing indwelling urinary catheters with condom catheters for all male patients.

D.  

Using antibiotic-coated catheters in all ICU patients.

Discussion 0
Questions 49

Which of the following represents the most effective strategy for preventing Clostridioides difficile transmission in a healthcare facility?

Options:

A.  

Daily environmental cleaning with quaternary ammonium compounds.

B.  

Strict antimicrobial stewardship to limit unnecessary antibiotic use.

C.  

Universal

C.  

difficile screening on admission for high-risk patients.

D.  

Routine use of alcohol-based hand rub for hand hygiene after patient contact.

Discussion 0
Questions 50

What is the MOST effective way an infection preventionist can assess readiness of emergency preparedness plans for an influx of patients with an emerging viral hemorrhagic fever?

Options:

A.  

Meet frequently with emergency management professionals in the hospital and local public health authority.

B.  

Conduct regular rounding in the Emergency Department providing education and reviewing policies and procedures with frontline staff

C.  

Coordinate with hospital-based emergency management professionals and other incident command stakeholders to conduct a tabletop exercise or full-scale drill.

D.  

Collaborate with hospital stakeholders to assess the current availability of backup supplies of both staff and personal protective equipment

Discussion 0
Questions 51

A patient with a non-crusted rash has boon diagnosed with Sarcoptes scabiei. The patient is treated with 5% permethrin and precautions are started. The precautions can be stopped

Options:

A.  

when the treatment cream is applied

B.  

when the bed linen is changed

C.  

24 hours after effective treatment

D.  

24 hours after the second treatment

Discussion 0