Why is flushing an IV line with saline important during use?

Flushing an IV line with saline is particularly important to maintain line patency and prevent clotting. When an IV line is in use, blood can begin to clot within the catheter or the lumen if the line is not effectively cleared. Flushing with saline helps to keep the line open and free from any obstructions that could impede the flow of medication or fluids. This action ensures that the therapeutic agents being delivered can reach the patient's bloodstream without delay or interruption.

Furthermore, regular flushing helps to wash out any residual medications that may adhere to the sides of the catheter, ensuring that patients receive the full intended dose of each subsequent medication. By routinely flushing the line, healthcare providers also mitigate the risk of thrombus formation, which could otherwise lead to complications such as phlebitis or line occlusion.