When should a nurse attempt to change the IV bag of a patient with an access device?

Changing the IV bag when there is less than 100 mL left is important for maintaining uninterrupted medication delivery and ensuring patient safety. This time frame allows the nurse to replace the IV bag before it runs entirely empty, thus preventing any disruption in the infusion of fluids or medications that could lead to complications or adverse effects in the patient.

Replacing an IV bag when there is less than 100 mL remaining also gives the nurse adequate time to assess the infusion site, monitor for any potential issues, and respond to the patient's needs without unnecessary delays. Waiting for the bag to be completely empty can lead to the potential risks of air entering the IV line, as well as the delay in administering critical treatments that rely on consistent IV access.

Monitoring the IV bag and being proactive about the change helps avoid complications such as infiltration, phlebitis, or interruption in therapy, which are vital for the care of patients who may require continuous medication or fluid administration.