CATHERIZATION METHOD Flashcards
most widely used technique to introduce a catheter into the vessel.
Seldinger technigue
What is the process of the seldinger technique
it punctures the vessel
Who developed the Seldinger technique and when?
Sven Ivan Seldinger 1953
This technique involves the use of the needle, guidewire, catheter
Seldinger Technique
Enumerate all the steps in the Seldinger Technique
- Record all pulses & blood pressure of both extremities
- The peripheral vessels are palpated and their pressures recorded
- Site is cleaned & area draped
- Physician administers a local anesthetic in the perivascular tissue
- Local Anesthesia, use 2 ml syringe & 2% lidocaine
- Small incision of about 2mm is made in the skin approx. 1-2cm below the intended puncture site
- Needle is placed in the incision 7 artery is located
- Pulsations felt against the needle allow the physician to locate the artery
- When needle is centered on the artery, the needle is advanced
- To place the needle in the lumen of the artery, the needle is angled so that it is parallel to the skin and is slowly withdrawn until there’s a backflow of blood
- The flexible end of the guidewire is inserted through the needle and advanced at least 6 to 10 cm in the vessel.
- The needle is removed over the guidewire while pressure is applied to the puncture site
- A vessel dilator is placed over the guidewire and inserted in the artery.
- A vessel dilator is placed over the guidewire and inserted in the artery.
What are the classifications for a vessel to be desirable during catherization
Large, has no/little tortuosity, least likely to caused complications
What are the approaches to catherization?
Percutaneous artery approach
Percutaneous venous approach
Cutdown
Trans lumbar
What are the different Percutaneous artery approaches?
Femoral Artery
Brachial Artery
Axillary Artery
Radial Artery
Carotid Artery
What are the different Percutaneous venous approaches?
Femoral Vein
Internal Jugular Vein
Axillary/Subclavian Vein
Median Cubital Vein
