What measures help prevent phlebitis when securing IV catheters?

• A. Secure well, use stat-lock, and choose the smallest reasonably sized catheter
• B. Use the largest catheter and leave in place for 72 hours
• C. Avoid skin prep and move catheters frequently
• D. Avoid inspecting the site

Answer: (A)

Phlebitis is inflammation of the vein caused by irritation from the IV catheter and its site. The best way to prevent it is by minimizing movement and mechanical trauma at the insertion site and reducing vein irritation from the catheter size. Securing the catheter well prevents it from rubbing and shifting inside the vein, which interrupts the endothelial lining and provokes inflammation. Using a stabilization device like a stat-lock further limits catheter movement, reducing friction against the vein wall. Choosing the smallest catheter that still achieves the needed therapy lowers endovascular trauma, since a larger bore can irritate the vein more and increase the chance of inflammation.

In contrast, using a larger catheter and leaving it in for a long period increases contact with the vein and extends exposure to potential irritants, raising phlebitis risk. Skipping skin prep and moving catheters frequently heighten both infection risk and mechanical irritation. Not inspecting the site prevents early detection and management of evolving irritation, allowing problems to worsen.