Which of the following is NOT a common sign of infiltration at an IV site?

Infiltration occurs when intravenous (IV) fluid leaks into the surrounding tissue rather than being delivered into the vein. Common signs of infiltration include swelling at the site, which happens because fluid accumulates in the surrounding tissue. The coolness of the skin is also a typical indicator, as the affected area may feel cooler due to the lack of circulation and the presence of fluid outside the vein.

Redness around the IV site is not typically associated with infiltration; rather, it can indicate irritation, infection, or phlebitis. However, increased venous pressure does not correlate with infiltration. In fact, if infiltration occurs, the pressure in the vein usually decreases because the fluid is no longer being adequately delivered through it. Thus, the absence of increased venous pressure is what sets it apart as a sign that does not manifest in cases of infiltration.