CRNI Peripheral Vascular Access and IV Site Management 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 CRNI Peripheral Vascular Access and IV Site Management flashcards as text
What is the primary advantage of an over-the-needle catheter (ONC) over a steel needle for peripheral IV access?
Answer: Reduced risk of infiltration once the stylet is removed
The flexible ONC catheter stays in the vein after the metal stylet is withdrawn, greatly reducing infiltration risk.
Which assessment finding is most consistent with early peripheral IV infiltration?
Answer: Cool, pale, swollen skin at the insertion site
Cool, pale, swollen skin indicates fluid has leaked into surrounding tissue rather than flowing through the vein.
The INS Infiltration Scale grades infiltration severity on which range?
Answer: 0–4 based on clinical skin assessment findings
The INS Infiltration Scale uses a 0–4 grading system based on findings such as skin blanching, swelling, and tissue integrity.
Which factor most increases the risk of chemical phlebitis during peripheral IV therapy?
Answer: Infusing hypertonic or irritating solutions
Hypertonic and irritating solutions damage the tunica intima, causing chemical phlebitis.
A patient's peripheral IV site shows a 2 cm streak of redness running along the vein. This finding most likely indicates:
Answer: Phlebitis
A red streak tracking along the vein is a classic sign of phlebitis, indicating inflammation of the vessel wall.
Which catheter material is associated with the lowest risk of phlebitis for peripheral IV access?
Answer: Polyurethane
Polyurethane catheters have superior biocompatibility and flexibility, resulting in lower phlebitis rates compared to PTFE.