Final answer:
The vessels selected for dialysis/apheresis catheters are typically central veins, such as the subclavian vein, jugular vein, and femoral vein.
Step-by-step explanation:
In the context of dialysis/apheresis catheters, the vessels selected are typically central veins. These veins are larger and more easily accessible for the insertion of the catheter. Common vessels selected include the subclavian vein, jugular vein, and femoral vein.