A nurse is assessing a client who is receiving a peripheral IV infusion and notes infiltration of fluid into the tissues surrounding the insertion site. Which of the following actions should the nurse take?

The correct answer is C: Elevate the extremity. Elevating the extremity helps to reduce the swelling and prevent further infiltration by promoting drainage of the fluid back into circulation. This action helps to minimize tissue damage and discomfort for the client. Slowing the infusion rate (choice A) may not be sufficient to address the issue of infiltration. Flushing the IV catheter (choice B) may not resolve the infiltration and could potentially worsen the situation. Applying pressure to the IV site (choice D) may further damage the tissues.