What is a peripheral cannula?
Peripheral cannula or peripheral venous catheter (PVC) is a catheter located inside a vein in the arm or hand for intravenous (IV) access to the circulatory system. The purpose of the cannula is to add fluids or medicines to the bloodstream or remove blood for diagnostic testing. The choice of lumen diameter or opening in the cannula is based on the need to increase or reduce the speed of the fluid passing through the cannula tube. The common side effects of the cannula placement are bruises and bleeding from the place of insertion. Serious complications include infections, air embolism or flebitis.
Before using the peripheral cannula, the skin around the place is cleaned with an isopropyl alcohol pad, which is used to remove most bacteria present on the skin. Furthermore, a suitable vein is located and a hollow needle is inserted into the vein. Once the location in the vein is confirmed by physiological rinse, the needle is removed and the tube is left inside the vein.
discomfort caused by inserting the peripheral cannula can be reduced by the use of arive anesthetics. Adults can receive an anesthetic injection. Anesthetic cream can be applied to the skin of children a few minutes before inserting the needle to the dull skin.
After the peripheral cannula is introduced into the vein, medical instructions for patient safety should be followed. The peripheral catheter should be attached to the skin by means of adhesive tape of the medical class to prevent accidental removal of the cannula and reduce the risk of movement of the cannula in the vein. The cannula pipes must be replaced after more than four days in the body due to the risk of infection. If a lipid or fat molecule is transfused into a patient via the peripheral cannula, it should be removed and re -plated within 24 hours.
Common side effects after placing the peripheral cannula are usually mild. Patients who do not have normal blood clotting capabilities may be excessive bleeding from the cannula place. Blood that penetrates the surrounding tissues after vLoating the cannula can cause the bruising around the cannula.
serious complications may occur as a result of the introduction of peripheral cannula. The integrity of the skin barrier consists of inserting the cannula, causing the risk that bacteria enter the body through a break in the skin and cause infection. Small blood clots can form at the point of insertion and enter the bloodstream, causing flebitis to occur. If the air enters the bloodstream from the cannula, air embolism can cause blood flow in the circulatory system.