The nurse is caring for a client receiving continuous IV fluids through a single lumen central venous catheter (CVC). Based on the CVC care bundle, which action should be completed daily to reduce the risk for infection?

Use aseptic technique only when accessing the injection port.

Gently flush the CVC catheter lumen with sterile saline solution.

Confirm the necessity for continued use of the CVC.

Cleanse the site and change the transparent dressing daily.