CBIC Ultimate CBIC 3

Question 1

Which of the following is classified as a high-level disinfectant when used appropriately?

Accepted Answer

Glutaraldehyde 2%

Answer

Glutaraldehyde 2% achieves high-level disinfection when items are immersed for the required contact time, destroying all microorganisms except high numbers of bacterial spores.

Question 2

The basic reproduction number (R0) of an infectious disease represents:

Accepted Answer

The average number of secondary cases generated by one infectious person in a fully susceptible population

Answer

R0 represents the average number of new infections one case generates when introduced into a completely susceptible population with no interventions.

Question 3

Which of the following is the MOST effective method to prevent central line-associated bloodstream infections (CLABSIs)?

Accepted Answer

Implementing a central line insertion bundle

Answer

A central line insertion bundle — including hand hygiene, maximal sterile barrier precautions, chlorhexidine skin antisepsis, and daily assessment of line necessity — has the strongest evidence for CLABSI prevention.

Question 4

An infection preventionist notices that surgical site infection rates in orthopedic procedures have increased over the past two months. Which is the BEST initial action?

Accepted Answer

Review case definitions and data collection methods for accuracy

Answer

Before implementing interventions, the IP should first verify that the increase is real by reviewing case definitions and data quality to rule out surveillance artifact.

Question 5

Which PPE item is required when caring for a patient on contact precautions and entering the room to perform wound care?

Accepted Answer

Gown and gloves

Answer

Contact precautions require both a gown and gloves upon entry to the patient room, especially when contact with the patient or potentially contaminated surfaces is anticipated.

CBIC - Certification Board of Infection Control Practice Test

CBIC - Certification Board of Infection Control Practice Test

CBIC Ultimate CBIC 3