Which symptom may indicate a potential IV therapy complication?

Site redness, swelling, or pain is a key indicator of potential complications related to IV therapy. These symptoms suggest that there may be an inflammatory response or infection at the IV insertion site. Redness can indicate irritation or inflammation, swelling may point to infiltration or phlebitis, and pain suggests that the surrounding tissues may be reacting unfavorably to the IV catheter or the fluids being infused. Monitoring for these symptoms is crucial, as they can lead to more serious complications if not addressed promptly. Recognizing these signs early allows healthcare providers to intervene, such as by discontinuing the IV, assessing for infiltration, or treating any infections, thereby ensuring patient safety and effective therapy. The other options listed do not signify acute complications that require immediate attention.