I realize every facility does things differently, but how do you all flush central lines? Some say to put 5 cc's of saline in a 10 cc syringe, flush and follow with heparin. Others don't use heparin. Some require or allow prefilled syringes with saline and heparin mixed. I have a mental block when it comes to flushing central lines. We have a chart, but even finding out which line someone has can be an obstacle! When I question other nurses many seem to not be 100% sure. Thanks for your help!