Veenikanüüli

Veenikanüüli, often referred to as an intravenous (IV) cannula or line, is a short, hollow plastic tube that is inserted into a vein. Its primary purpose is to provide a secure and accessible route for administering fluids, medications, blood transfusions, or for obtaining blood samples. The insertion of a veenikanüüli is a common medical procedure performed by trained healthcare professionals.

The device typically consists of a needle, which is used to puncture the vein, and a plastic catheter that remains in place after the needle is withdrawn. The catheter is secured to the skin with adhesive tape or a specialized dressing to prevent dislodgement. Veenikanüüli come in various sizes, indicated by gauge numbers, with smaller gauges used for fragile veins and larger gauges for faster fluid delivery or thicker medications.

The use of a veenikanüüli allows for continuous or intermittent administration of substances directly into the bloodstream, bypassing the digestive system. This is particularly important for medications that are not absorbed well orally, for patients who cannot take oral medications, or when rapid therapeutic effects are needed. Regular monitoring and care are essential to prevent complications such as infection, phlebitis (inflammation of the vein), or infiltration (leakage of fluid into surrounding tissues).