Final answer:
The nurse should recognize that the client has phlebitis at the IV insertion site if the area surrounding it feels warm to the touch, which is indicative of inflammation.
Step-by-step explanation:
The finding that should indicate to the nurse that the client has phlebitis at the IV insertion site is when the area surrounding the insertion site feels warm to the touch. This is indicative of inflammation, which is a common symptom of phlebitis. Other signs of phlebitis can include redness, swelling, pain, or a palpable cord along the vein where the IV is inserted, which may be assessed during a clinical examination. Additionally, timely recognition and treatment of phlebitis are crucial to prevent complications like infection or thrombosis.
correct option 3) the area surrounding the insertion site feels warm to the touch