Catheter colonization A significant growth of a microorganism (>15 cfu) from the catheter tip, subcutaneous segment ... of semi-quantitative (≥15 colony forming units per catheter segment ...
Fibrin also may build up on a catheter without completely enclosing it. In this scenario, a small piece of fibrin hangs off the catheter tip ... more prevalent with silicone catheters, as lipid ...