Which hemodialysis patients with a tunneled catheter do you start on an antimicrobial lock to prevent bloodstream infection?

I don't routinely use antimicrobial lock for TDC. The patients that I would consider are:

• Patients who have already had 2 or more CRBSIs and are still catheter-dependent, especially if access sites are running out
• S. aureus carriers
• Patients with endovascular prostheses
• All CVC patients in a unit w...

Definitely patients who have had a documented infection, but more recently, I have been trying to place some form of lock solution on most of my patients with catheters at all times.