The charge nurse observes a new nurse preparing to irrigate an intravenous catheter. The new nurse brought a luer-lock-tipped syringe. Which action should the charge nurse take?

Prompt the nurse to apply povidone to the site.

Direct the nurse to attach the luer-lock tip to the irrigation port.

Send an unlicensed assistive personnel to gather equipment.

Instruct the nurse to use water with 5% dextrose (DW).