What vein is optimal for long term intravenous therapy?

The optimal vein for long-term intravenous therapy is typically the subclavian vein or the internal jugular vein. These veins are preferred because they are larger, provide stable access, and have a lower risk of complications such as thrombosis and infection. For patients requiring extended IV therapy, a central venous catheter (CVC) is often used, allowing for reliable and continuous access.