The technique used for IV insertion involves threading a catheter over a needle into a vein.
This procedure requires specific steps and techniques to ensure successful cannulation and minimize complications. Here's a breakdown:
- Preparation: Select an appropriate vein, typically in the arm. Apply a tourniquet to distend the vein. Clean the insertion site with antiseptic solution.
- Insertion: Hold the venous access device (needle with catheter) between your thumb and middle finger.
- Cannulation: Insert the needle through the skin and into the vein at a shallow angle. Look for a flashback of blood in the catheter hub, which indicates successful vein entry.
- Advancement: Advance the catheter into the vein while stabilizing the needle. This is done by sliding the hub of the catheter over the needle and into the vein.
- Needle Removal: Once the catheter is fully advanced, retract and safely dispose of the needle.
- Stabilization: Secure the catheter hub to the skin with tape or a transparent dressing.
- Confirmation and Flush: Connect IV tubing to the catheter hub and flush with saline to verify patency.
This "threading-the-catheter-over-the-needle" technique is the standard method for peripheral IV cannulation.
