Infection Prevention and Control Flashcards
6 cards from real CRNI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Infection Prevention and Control flashcards as text
What is the recommended frequency for assessing peripheral IV sites for signs of complications?
Answer: Every 1-2 hours for critically ill patients and at least every 4 hours for general patients
INS standards recommend IV site assessment every 1-2 hours for critically ill patients and vesicant/irritant infusions, and at least every 4 hours for stable patients.
Which practice is MOST important for preventing catheter-related infections during infusion therapy?
Answer: Maintaining a closed infusion system and minimizing line disconnections
Maintaining a closed system and minimizing unnecessary disconnections prevents microbial entry into the infusion system, which is the primary mechanism for intraluminal catheter colonization.
What is the evidence-based practice for preventing bloodstream infections associated with midline catheters?
Answer: Aseptic technique with CHG skin prep, similar to PICC insertion standards
Midline catheter insertion requires aseptic technique with chlorhexidine skin antisepsis, reflecting the longer dwell time and deeper vessel placement compared to standard peripheral IVs.
Which environmental factor is MOST critical for safe IV admixture preparation?
Answer: ISO Class 5 air quality environment with proper aseptic technique
IV admixture preparation requires ISO Class 5 (formerly Class 100) air quality, typically achieved with a laminar airflow workbench, to minimize particulate and microbial contamination.
What is the recommended practice for flushing central venous catheters to maintain patency and prevent infection?
Answer: Pulsatile flush with preservative-free 0.9% NaCl using push-pause technique
Pulsatile flushing with preservative-free normal saline using a push-pause (start-stop) technique creates turbulence that effectively clears the catheter lumen of blood and fibrin.
Which surveillance measure is MOST useful for tracking infusion-related infections in a healthcare facility?
Answer: CLABSI rate per 1,000 central line days using NHSN definitions
CLABSI rates standardized per 1,000 central line days using NHSN surveillance criteria allow meaningful comparison across units, facilities, and over time.