The<unk>  should pass through the umbilicus, travel inferiorly through the<unk>  artery into the common iliac artery and then into the aorta. The tip of the<unk>  should be away from major vessels so that it does not block the vessel or instill a high-concentration solution directly into an organ-feeding vessel, such as the renal artery. It should be placed either in a high position at the T6 to T10 level or in a low position at the L3 to L5 level. An<unk>  venous catheter can be distinguished from an<unk>  as the<unk>  venous catheter travels cranially in the<unk>  vein while the<unk>  travels caudally in an<unk>  artery to reach a common iliac vessel.
Umbilical arterial catheter
Umbilical venous catheter
Percutaneous umbilical cord blood sampling
Central venous catheter
Peripherally inserted central catheter
Fetal surgery
Maternal immunization
Transposition of the great vessels diagram