A<unk>  <unk>  or central venous line) is a catheter placed into a large vein in the neck, chest or groin, this is inserted by a physician when the patient needs more intensive cardiovascular monitoring, for assessment of fluid status, and for increased viability of intravenous drugs/fluids. The most commonly used veins are the internal jugular vein, the subclavian vein and the femoral vein.  This is in contrast to a peripheral line which is usually placed in the arms or hands. The Seldinger technique is generally employed to gain central venous access.
Central venous catheter
Arterial line
Peripherally inserted central catheter
Guidewire coatings
Catheter
Umbilical arterial catheter
Umbilical venous catheter
Radial catheterization procedure