A central line is a type of IV that is inserted into a large vein to carry fluids through a thin tube up near the heart. Many people have central lines during cancer treatment. If you need a central line, your cancer care team will teach you how to care for it at home. This video will show you how to change a clave on your tunneled catheter (or Hickman line). Clave changes should be done weekly to keep your central line working properly and to prevent an infection. Please contact your cancer care team with any questions.