What is a key infection prevention principle for central venous catheters?

• A. Use aseptic technique and proper catheter care; minimize catheter manipulation
• B. Use daily systemic antibiotics
• C. Replace catheter weekly
• D. Use only sterile water for flushing

Answer: (A)

Preventing infection from central venous catheters hinges on strict aseptic technique and careful catheter care, along with minimizing how often the line is manipulated. When handling the catheter, always perform hand hygiene, use sterile barriers and gloves during insertion, and apply appropriate skin antisepsis to the insertion site. Keep the system closed and secure the line to reduce movement, and clean and disinfect ports or hubs before every access. Dressing changes should be done with sterile technique according to protocol, and access should be limited to what’s clinically necessary. Regularly reassess whether the catheter is still needed and remove it promptly if not. Additional measures like daily systemic antibiotics, weekly replacement, or flushing with sterile water do not align with evidence-based infection prevention and can cause harm.