Hi, my hospital has just switched from the Baxter interlink to the Baxter onelink with extension. I know most hospitals changed from the old interlink system long ago, but we had been happy with it so it took us awhile. Here is my question: Our protocol has always been to change propofol tubing every 12 hours. We did not change the cap when we changed the tubing. I am wondering what is the practice with extensions out there when changing propofol tubing? Do you leave the extension and cap and just change the administration tubing every 12 hours or do you switch out the extension too? Prior to this switch we used extensions but it wasn't a common practice to do so on every patient. So culturally and procedurally this is a switch for us to have an extension on every line.