CBIC Test 5

Question 1

Which calculation correctly expresses a central line-associated bloodstream infection (CLABSI) rate per NHSN methodology?

Accepted Answer

(Number of CLABSIs / Number of central line days) × 1,000

Answer

NHSN expresses CLABSI rates as the number of CLABSIs per 1,000 central line days to account for the duration of device use.

Question 2

An infection preventionist receives a report of increased Acinetobacter baumannii infections in the ICU. Which infection control measure is the highest priority?

Accepted Answer

Initiate contact precautions for all colonized and infected patients

Answer

Contact precautions for all colonized or infected patients are the priority intervention to prevent horizontal transmission of Acinetobacter baumannii.

Question 3

Which element of a surveillance program ensures that data reflect actual infection events and are not inflated by case misclassification?

Accepted Answer

Specificity and positive predictive value of case definitions

Answer

Applying standardized case definitions with high specificity and positive predictive value ensures surveillance data accurately represent true infection events.

Question 4

Which occupational health measure is the primary strategy for preventing healthcare worker influenza transmission to vulnerable patients?

Accepted Answer

Annual influenza vaccination of healthcare personnel

Answer

Annual influenza vaccination of healthcare personnel is the primary evidence-based strategy for reducing transmission to high-risk patients.

Question 5

A quality improvement team wants to track CAUTI rates over time to detect trends. Which display format is most appropriate?

Accepted Answer

Statistical process control (SPC) run chart or control chart

Answer

SPC run charts and control charts display data over time and use statistical rules to distinguish common-cause variation from special-cause (signal) variation.

CBIC - Certification Board of Infection Control Practice Test

CBIC - Certification Board of Infection Control Practice Test

CBIC Test 5