A nurse cares for a client with an intravenous (IV) line and notices signs of infiltration. What action should the nurse take first?

Choice A reason: Elevating the affected arm is a supportive measure that can help reduce swelling and promote venous return, but it does not address the source of the infiltration. Elevation should be implemented after the IV infusion has been stopped to prevent further tissue damage. Choice B reason: Applying a warm compress can increase blood flow and promote absorption of infiltrated fluid, but this is a secondary intervention. Immediate action must first stop the infusion to prevent additional infiltration. Choice C reason: Removing the IV catheter is necessary after stopping the infusion to prevent further tissue injury. However, the priority is first to stop the IV infusion to immediately halt the delivery of fluid into the tissue. Choice D reason: Stopping the IV infusion immediately prevents additional fluid from infiltrating into the surrounding tissue. This is the first and most critical action to minimize tissue damage and prevent complications. Once the infusion is stopped, other interventions such as removal of the catheter, elevation, and warm compresses can be applied.