P3 Flashcards
Gaining _____ is the first and most critical step for the majority of interventional radiology procedures.
vascular access
preferred for central venous access, especially in patients requiring long-term venous access or central lines.
Neck (e.g Internal Jugular Vein)
Frequently used for large bore access in arterial interventions, catheter- based treatments and emergency procedures.
(Percutaneous Transluminal Angiography, Angioplasty)
Groin (eg. Common Femoral Artery/Vein)
increasingly popular for coronary and peripheral interventions due to lower bleeding risk and patient comfort. (Angioplasty, Stent Placement).
Extremities (eg. Radial Artery)
Preferred sites for vascular access
Neck
Groin
Extremities
Pre-Procedure Evaluation
Inspect the access site
Ultrasound guidance
Patient Preparation
Sanitize and Drape
Sterile Technique
Local Anesthesia
_____ is administered in the access site
1-2% lidocaine
Vascular Access Technique
Positioning and needle insertion
Position the ultrasound probe ____ to the skin.
Insert the needle at a shallow angle ( _____degrees) _____ to the probe, with the bevel facing upward.
Ensure the needle trajectory ____ with the ultrasound plane to maintain continuous visualization.
perpendicular
20-30, parallel
aligns
use a _____ motion with the UTZ probe to differentiate the needle tip from the shaft.
gentle rocking
Bright Red and pulsatile
Arterial Blood
Dark red and Slow, non-pulsatile
Venous Blood
perform ____ with a syringe if unsure of entry
gentle aspiration
Monitor guidewire movement under ____ to ensure intravascular placement.
ultrasound or fluoroscopy
Vascular Access Technique
Positioning and Needle Insertion
Needle Visualization
Confirm Vessel Entry
Seldinger Technique for Vascular Access
Guidewire Insertion
Skin Nick
Dilator and Sheath Placement
In seldinger technique, use a ____ blade scalpel to make a small skin incision at the guidewire entry
11
Apply direct pressure for ___ minutes if venous access is required
5-10
Is a critical component of most interventional radiology procedures
Venous Access
Common access sites
Internal Jugular Vein and Femoral Vein)
The ____ is typically preferred due to its straighter course to the heart.
Right Internal Jugular Vein
Advantages of Right IJV:
•Easier navigation to central veins.
•Reduces catheter kinks and bends.
Located medial to the femoral artery
Femoral Vein Access
Best Practices for IJV Access:
•Maintain needle trajectory approximately ____ above the clavicle.
•Use the right IJV when possible for optimal access.
1 cm