Final answer:
The optimal tip location for non-tunneled and PICC catheters inserted through the femoral vein is at the junction where the femoral vein becomes the external iliac vein, just before it joins the common iliac vein.
Step-by-step explanation:
The optimal tip location for non-tunneled and PICC catheters when inserted through the femoral vein is at the junction where the femoral vein passes into the body cavity to become the external iliac vein, before draining into the common iliac vein.
It is important for the catheter to be positioned accurately to ensure proper function and reduce the risk of complications. In the context of the anatomy, the femoral vein is a crucial vessel, receiving blood from the great saphenous vein, which is a prominent surface vessel draining the superficial portions of the leg and thigh, as well as from the deep femoral vein and the femoral circumflex vein, which drains the areas around the head and neck of the femur.