What is the function of the dacron cuff on a centrally inserted catheter?

• A. Stabilizes the catheter and decreases infection by impeding bac migration along the catheter beyond the cuff
• B. Increases blood flow rate
• C. Provides analgesic relief
• D. Acts as a medication reservoir

Answer: (A)

The cuff’s function is to stabilize the catheter and reduce infection risk. Placed in the subcutaneous tissue, the Dacron cuff becomes integrated as tissue grows into it, locking the catheter in place. That tissue ingrowth also acts as a barrier to bacteria traveling along the catheter from the skin toward the bloodstream, lowering the chance of infection. It does not affect blood flow, provide pain relief, or serve as a medication reservoir.