What is the main advantage of using a central venous catheter?

The main advantage of using a central venous catheter is its ability to facilitate long-term medication administration. This is particularly important in clinical situations where patients require continuous or extended therapy, such as those receiving chemotherapy, long-term antibiotics, or medications that are irritating to peripheral veins.

Central venous catheters are designed to remain in situ for an extended duration, allowing healthcare providers to maintain access to the central venous system for weeks or even months without the need for repeated venipuncture, which can be painful and lead to increased risk of complications. This makes it a preferred choice for patients who need sustained therapy or frequent blood draws.

In terms of the other options, while a central venous catheter can deliver larger volumes of fluid quickly, its primary advantage lies in its use for long-term medication delivery. Additionally, central lines can sometimes carry a higher risk of infection compared to peripheral IVs due to their continuous presence over time. Furthermore, they are generally considered more invasive than peripheral IVs, given their placement in larger veins, such as those in the neck or chest.