Central lines are used to administer large amounts of fluid, including total parenteral nutrition. (A) A short (nontunneled) triple-lumen percutaneous (through the skin) central venous catheter This catheter is inserted into the subclavian vein and threaded up into the superior vena cava (Lynn, 2008). (B) The peripherally inserted central catheter (PICC) line is inserted into the antecubital space and is sufficiently long to be threaded up into the superior vena cava (Lynn, 2008). (C) The implan