EBB 104 - The Evidence on Saline Locks

A saline lock - sometimes called a “hep-lock” in reference to how it used to be used - is an intravenous (IV) catheter that is threaded into a peripheral vein, flushed with saline, and then capped off for later use. Nurses use saline locks to have easy access to the vein for potential injections. They can be useful in administering drugs as needed, and in the event of emergency surgery.