A central line, also known as a central venous catheter, is a thin, long, flexible tube that serves as a long-term IV. The line passes through an opening in the skin and into a vein. It then travels through the vein until it reaches a spot just near or inside the heart.
With some types of central lines, 1 end of the line extends outside of the body. The part on the outside of the body has a connector. Other types of central lines, like a subcutaneous port, are located completely under the skin.
The care team uses the central line to give:
The care team can also use the line to collect blood samples for tests, such as a complete blood count and blood chemistry studies.
Your child may get a central line if they are seriously ill and need treatment for a long time. Your care team will tell you why your child needs a central line.
A subcutaneous port is a central venous catheter located completely under the skin. Medicine is given through the port using a special needle called a Huber needle.
There are 3 types of central lines:
The type of central line depends on:
The procedure will take place in an interventional radiology or operating room. Depending on the medical centers’ policies, you may be able to stay with your child until it is time for the line to be placed.
Before line placement, your child may have to stop eating and drinking for several hours before the procedure. These are called fasting guidelines. Your care team may call them NPO instructions. Your child must follow these instructions if asked to do so.
Your child may be awake or asleep for the procedure. If your child is awake, the care team will numb the skin first to prevent pain. Some patients may get general anesthesia to help them sleep during the procedure.
Anesthesia and surgical procedures always have risks. Your care team will tell you the risks and benefits of getting a central line.
It may take several days for your child to feel comfortable with their line. Let your care team know about any pain or discomfort your child feels.
If your child is going home with the central line, your care team will teach you how to care for it. All primary family caregivers will receive training on caring for the line and when to call about concerns. Ask your care team about anything you do not understand.
Your child should not do activities that could damage the line, such as contact sports and rough play. They must not swim or get the site wet, as this can increase the risk of infection. Ask your care team what your child can and cannot do with a central line.
Watch for problems. This includes infections, leaking, blood clots, and movement of the line.
Read more about Understanding Central Line Problems.
Patients with a central line are at risk for a serious infection known as central line associated blood stream infection (CLABSI), which can be life-threatening. To help prevent infection:
Call your care team if you notice any of the following:
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Reviewed: February 2026
Your child may need a procedure to place a PICC line, also called a peripherally inserted central catheter. A PICC line allows medicines, nutrition, blood products, and fluids to be given into a large vein. Learn about PICC lines and how to care for them.
A tunneled central line is a central venous catheter that is tunneled under the skin. A central line allows medicines, nutrition, blood products, and fluids to be given into a large vein.
A subcutaneous (implanted) port is a central venous catheter located completely under the skin, usually in the chest. Medicine and other treatments are given through the port using a special needle, called a Huber needle.