In an upper arm PTFE dialysis graft, what is the typical outflow vein?

• A. Cephalic vein
• B. Axillary vein
• C. Basilic vein
• D. Subclavian vein

Answer: (C)

The main idea here is that a prosthetic graft needs a large, durable vein to carry the high blood flow back to the heart. In an upper-arm PTFE dialysis graft, the typical outflow vein is the basilic vein. It’s a deep, sizeable vein that drains into the axillary vein and onward to the central circulation, providing a robust conduit for the graft’s high flow and helping maintain long-term patency. The depth and caliber of the basilic vein also make it less prone to issues that superficial veins might have, and it can be preserved for future access if needed. While other veins like the cephalic or axillary can be involved in various configurations, the basilic vein is the most commonly used outflow for upper-arm PTFE grafts due to its suitable size and location.