1. Introduction
Peripheral intravenous cannulation is a common clinical procedure used for fluid administration, medication delivery and blood sampling. Success depends on good preparation, vein selection and secure fixation.
2. Preparation
Confirm the indication, identify the patient, explain the procedure and gain consent. Check for allergies, choose the smallest appropriate cannula for the indication and assemble all equipment before starting. Perform hand hygiene and use appropriate personal protective equipment.
3. Procedure
Apply the tourniquet, select a suitable vein, clean the skin and allow it to dry fully. Anchor the vein and insert the cannula bevel up at a shallow angle. Once flashback is seen, lower the angle, advance slightly and then thread the cannula into the vein while withdrawing the needle. Release the tourniquet, attach the extension set or bung, flush to confirm patency and secure the cannula.
4. Aftercare
Dispose of the needle immediately into a sharps bin. Apply a dressing, document the procedure and monitor for complications such as pain, swelling, extravasation, phlebitis or infection.
Preparation
Procedure
Aftercare