Hemodialysis catheter
Hemodialysis Catheter
A Hemodialysis Catheter (pronunciation: hee-mo-dye-AL-uh-sis KATH-uh-ter) is a type of vascular access device used in hemodialysis, a medical procedure to remove waste and excess fluid from the blood when the kidneys are not functioning properly.
Etymology
The term "Hemodialysis Catheter" is derived from three words: "Hemo" (from Greek haima meaning "blood"), "dialysis" (from Greek dialusis meaning "dissolution"), and "catheter" (from Greek katheter meaning "something let down").
Description
A Hemodialysis Catheter is a flexible, hollow tube that is inserted into a large vein, typically in the neck, chest, or groin. The catheter has two lumens or channels: one to carry blood from the patient to the dialysis machine, and the other to return the filtered blood back to the patient.
Types
There are two main types of Hemodialysis Catheters: temporary and permanent (also known as tunneled). Temporary catheters are used for short-term dialysis treatment, while permanent catheters are used when long-term treatment is needed.
Related Terms
- Vascular Access: The site on the patient's body where the blood is removed and returned during dialysis.
- Dialysis: The process of removing waste products and excess fluid from the body.
- Kidney Failure: A condition in which the kidneys lose their ability to filter waste from the blood.
- Renal: Pertaining to the kidneys.
- Nephrology: The branch of medicine that deals with the study of the kidneys.
External links
- Medical encyclopedia article on Hemodialysis catheter
- Wikipedia's article - Hemodialysis catheter
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