Describe the purpose of an external catheter extension.

• A. To prevent infection
• B. To allow for easier access and manipulation of the catheter
• C. To reduce the risk of thrombosis
• D. To provide additional support for the catheter

Answer: (B)

The purpose of an external catheter extension is primarily to allow for easier access and manipulation of the catheter. This design feature enables healthcare providers to connect additional devices or administer medications without needing to access the central venous access device (CVAD) directly at the insertion site. By extending the catheter externally, clinicians can maneuver it more conveniently, minimizing the need for repeated punctures, which can cause patient discomfort, increase the risk of complications, and contribute to catheter-related infections.

Moreover, the flexibility offered by an external extension can facilitate the delivery of intravenous therapies, blood products, or parenteral nutrition in a manner that provides better access while maintaining the integrity and sterility of the CVAD itself. This can help streamline various medical procedures and enhance patient care overall.