They recently started a new policy at my hospital that PICC lines and Central lines are no longer to be flushed with any Heparin, only NS. The reason why hasn't really been explained, only that it is a policy change. I have heard talk that it is interfering with pt.'s blood clotting, and/or it is some new JACHO regulation. Anyway... we have had a lot of these lines clot off recently. (BIG surprise!) and I was wondering if any other hospitals have enacted the same policy, and/or if anyone has heard a reason why PICC lines and Central lines should no longer be flushed with Heparin holding solution.