CRNI Infection Prevention and Control 2

Question 1

What is the recommended frequency for assessing peripheral IV sites for signs of complications?

Accepted Answer

Every 1-2 hours for critically ill patients and at least every 4 hours for general patients

Answer

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.

Question 2

Which practice is MOST important for preventing catheter-related infections during infusion therapy?

Accepted Answer

Maintaining a closed infusion system and minimizing line disconnections

Answer

Maintaining a closed system and minimizing unnecessary disconnections prevents microbial entry into the infusion system, which is the primary mechanism for intraluminal catheter colonization.

Question 3

What is the evidence-based practice for preventing bloodstream infections associated with midline catheters?

Accepted Answer

Aseptic technique with CHG skin prep, similar to PICC insertion standards

Answer

Midline catheter insertion requires aseptic technique with chlorhexidine skin antisepsis, reflecting the longer dwell time and deeper vessel placement compared to standard peripheral IVs.

Question 4

Which environmental factor is MOST critical for safe IV admixture preparation?

Accepted Answer

ISO Class 5 air quality environment with proper aseptic technique

Answer

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.

Question 5

What is the recommended practice for flushing central venous catheters to maintain patency and prevent infection?

Accepted Answer

Pulsatile flush with preservative-free 0.9% NaCl using push-pause technique

Answer

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.

CRNI Exam Practice Test

CRNI Exam Practice Test

CRNI Infection Prevention and Control 2