When should you flush a saline lock?

Flushing a saline lock before administering new medications is critical to ensure that the intravenous (IV) line is clear and patency is maintained. This practice serves several essential purposes: it helps to prevent the mixing of medications that may not be compatible, checks that the IV site is still functional, and ensures the delivery of the medication is not obstructed by any clots or precipitates that may have formed in the line since the last use.

Maintaining the integrity of the access is important in delivering safe and effective care to the patient, reducing the risk of complications such as phlebitis or infection. Flushing before medication administration is a routine practice that helps guarantee that the patient receives the full intended dose without interference.

Other options, while they may contain elements of good practice, do not address the need for flushing at appropriate times to ensure effective medication delivery.