A nurse is preparing to administer an antibiotic via intermittent IV bolus to a client who is already receiving an infusion of 0.9% sodium chloride at 100 mL/hr. Which of the following actions should the nurse take?

Have another nurse verify the medication for the secondary infusion.

Hang the secondary infusion higher than the primary IV infusion.

Disconnect the primary IV infusion to connect the secondary infusion.

Flush the IV site with sterile water prior to connecting the secondary infusion.