I am revising our CVC protocol and would like to add a Normal Saline Flush for HIT + patients. I would like it to be either 1o ml NS q 12 hours or NS q 8 hours and 20 ml after a blood draw. This will be done in a pulsatile start stop technique. This will cover all types of CVCs. Yes we still use a very low dose Heparin as a final flush. My second question is on tunneled and non-tunneled Dialysis catheters. What are others doing. Are they just letting them be flushed 2-3 times weekly after Dialysis and of course prn use. We do not allow their use for routine IV therapy without special permission. Our old protcol was q 12 hours and no one would follow it. What is everyone else doing. I know all the INS quidelines mostly interested in your actual policies on these two issues. Thank you in advance for your responses! It is appreciated.