A licensed practical nurse (LPN) notes a small area of swelling at the IV site of a patient receiving a vesicant chemotherapy agent. What is the nurse's priority action to prevent tissue damage?

Immediately remove the IV catheter without withdrawing the solution.

Administer an antidote through the same IV line before removing the catheter.

Withdraw the solution from the IV catheter before removing it.

Elevate the affected extremity and apply warm compresses before stopping the infusion