Device-Associated Infection Prevention Flashcards

What is the CDC-recommended frequency for changing IV administration sets for continuous non-lipid infusions?

Answer: No more frequently than every 96 hours unless clinically indicated

CDC guidelines recommend changing IV tubing no more frequently than every 96 hours for continuous infusions, as more frequent changes increase manipulation and infection risk without benefit.

Which antiseptic preparation is recommended for central venous catheter insertion site skin antisepsis?

Answer: Chlorhexidine gluconate greater than 0.5% with alcohol

Chlorhexidine gluconate >0.5% combined with alcohol is the preferred skin antiseptic for CVC insertion sites due to its superior persistent antimicrobial activity.

What is the recommended change interval for transparent semipermeable dressings on central venous catheter sites?

Answer: Every 5–7 days or when soiled, loosened, or damp

Transparent dressings should be changed every 5–7 days or immediately if compromised, as they allow continuous visual monitoring without frequent disruption.

Which CAUTI risk factor is most directly modifiable by nursing staff at the bedside?

Answer: Duration of catheter indwelling time

Catheter duration is the most important modifiable CAUTI risk factor; daily nursing review and prompt removal when no longer indicated is the primary prevention intervention.

What is the primary function of a chlorhexidine-impregnated dressing at a central venous catheter exit site?

Answer: Reduce microbial colonization at the catheter-skin interface

Chlorhexidine-impregnated dressings provide sustained antimicrobial activity at the catheter exit site, reducing colonization and lowering CLABSI risk.

Which NHSN metric is used for risk-adjusted CLABSI benchmarking across facilities?

Answer: Standardized Infection Ratio (SIR)

The SIR compares observed CLABSI events to the number predicted based on national baseline data, allowing risk-adjusted comparison between facilities.