Cannulation
Cannulation
Cannulation (pronunciation: /ˌkanjʊˈleɪʃ(ə)n/) is a medical procedure that involves the insertion of a cannula into a body cavity, duct, or vessel to drain fluid or administer medication.
Etymology
The term "cannulation" is derived from the Latin word "canna" meaning "reed", referring to the tube-like structure of a cannula.
Procedure
Cannulation is typically performed by a healthcare professional such as a nurse, doctor, or paramedic. The procedure involves the use of a cannula, a thin tube made from a variety of materials such as plastic, metal, or rubber. The cannula is inserted into a vein or artery, usually in the arm or hand, but can also be placed in other parts of the body depending on the medical need.
Types of Cannulation
There are several types of cannulation, including:
- Venous Cannulation: This is the most common type of cannulation where a cannula is inserted into a vein to administer medication or fluids.
- Arterial Cannulation: This involves the insertion of a cannula into an artery, often for the purpose of monitoring blood pressure or obtaining blood samples.
- Central Venous Cannulation: This is a more complex procedure where a cannula is inserted into a large central vein, often for the administration of certain medications or for hemodialysis.
Related Terms
- Cannula: A thin tube used in cannulation to access veins or arteries.
- Venipuncture: The process of puncturing a vein, often as part of the cannulation procedure.
- Intravenous Therapy: The administration of fluids or medication directly into the bloodstream, often via a cannula.
Risks and Complications
Like any medical procedure, cannulation carries some risks and potential complications. These can include infection, bleeding, thrombophlebitis (inflammation of the vein), and injury to the vessel or surrounding tissues.
External links
- Medical encyclopedia article on Cannulation
- Wikipedia's article - Cannulation
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