CBIC Test 4

Question 1

When performing a root cause analysis (RCA) after an HAI cluster, which tool is most useful for systematically identifying contributing factors?

Accepted Answer

Fishbone (Ishikawa) diagram

Answer

A fishbone diagram organizes potential causes into categories (e.g., people, process, equipment) and helps teams systematically identify root causes.

Question 2

Which reprocessing method achieves the highest level of microbial kill, including destruction of all bacterial spores?

Accepted Answer

Sterilization

Answer

Sterilization destroys all forms of microbial life including bacterial endospores, making it the highest level of microbial kill.

Question 3

A new nurse asks which body fluids require standard precautions. Which response is most accurate?

Accepted Answer

All body fluids, secretions, and excretions except sweat

Answer

Standard precautions apply to all body fluids, secretions, and excretions (except sweat), non-intact skin, and mucous membranes regardless of known infection status.

Question 4

Which organization publishes the National Healthcare Safety Network (NHSN) surveillance protocols used as the US standard for HAI reporting?

Accepted Answer

Centers for Disease Control and Prevention (CDC)

Answer

The CDC develops and maintains NHSN, the nation's most widely used HAI tracking system used by healthcare facilities across the country.

Question 5

A community hospital reports a cluster of post-cesarean SSIs caused by a single strain of Staphylococcus aureus. Which approach is the priority first step in the investigation?

Accepted Answer

Review the case line list and compare case demographics, procedures, and staff involved

Answer

Constructing a line list to identify commonalities among cases is the priority first step to generate hypotheses about the source and transmission route.

CBIC - Certification Board of Infection Control Practice Test

CBIC - Certification Board of Infection Control Practice Test

CBIC Test 4