What is a key disadvantage of CVADs relative to peripheral IVs?

• A. Increased risk for systemic infection and invasiveness
• B. They have lower infection risk
• C. They are easier to insert
• D. They cannot administer parenteral nutrition

Answer: (A)

Central venous access devices carry a higher risk of bloodstream infection and require a more invasive placement process than peripheral IVs. Because the catheter enters a central vein and remains in place for extended periods, it creates a direct pathway for bacteria from the skin or infusate to reach the bloodstream, and the risk accumulates with time and line manipulations. Insertion itself is a procedure with potential complications, such as pneumothorax or arterial puncture, and ongoing care must be meticulous to prevent infection. This is why the key disadvantage is the increased risk of systemic infection and invasiveness. The other statements aren’t correct: CVADs can administer parenteral nutrition, and their infection risk is higher, not lower, and they are not easier to insert.