A nurse is monitoring a client following the insertion of a peripheral intravenous catheter. Which of the following findings should indicate to the nurse that the client is experiencing phlebitis at the insertion site?

Rationale: A. Leakage of IV fluid: Leakage of IV fluid at the insertion site suggests infiltration, not phlebitis. In infiltration, fluid escapes into surrounding tissues, leading to swelling and coolness, but not inflammation of the vein itself. B. Blood leakage: Blood leakage is usually related to poor catheter stabilization or improper insertion, not phlebitis. It does not indicate inflammation or irritation of the vein wall, which are hallmark signs of phlebitis. C. Red streak: A red streak following the path of the vein is a classic sign of phlebitis. It indicates inflammation of the vein wall and is often accompanied by pain, warmth, and swelling along the vein. D. Purulent drainage: Purulent drainage is a sign of infection rather than phlebitis. While phlebitis can lead to infection if untreated, purulent drainage points to a more serious complication involving bacterial growth.