A nurse is preparing to administer an antibiotic via intermittent IV bolus for a client who has a continuous IV infusion. Which of the following steps should the nurse take first?

A. Third, the nurse should connect the tubing of the medication bag to the primary tubing using a Y-connector or a piggyback port. The nurse should make sure that there are no air bubbles in the tubing and that the clamps are open. B. First, the nurse should check the IV site for signs of infiltration, which means that the fluid is leaking into the surrounding tissue instead of the vein. This can cause pain, swelling, redness, and infection. C. Second, the nurse should hang the antibiotic medication bag above the level of the primary infusion, which is the fluid that is running continuously through the IV line. This will create a positive pressure that will push the medication into the vein. D. Fourth, the nurse should wipe the connection port of the primary IV tubing with an antiseptic swab to prevent contamination and infection.