Radial - 1-2 cm proximal to wrist
Supinate hand and hold wrist in extension
Check for collateral circulation by performing the<unk> len test
Femoral - anteromedial thigh distal to inguinal ligament
Supinate hand and hold wrist in extension
Check for collateral circulation by performing the<unk> len test
Gently palpate pulse with nondominant hand to guide needle placement
Insert needle at 30-45 degrees to the skin
Advance until pulsatile blood is seen in flash chamber or catheter
Lower angle of catheter to 10-15 degrees to the skin
Advance catheter over needle into artery
Gently palpate pulse with nondominant hand to guide needle placement
Insert needle at 30-45 degrees to the skin
Advance until pulsatile blood is seen in flash chamber or catheter
Insert wire through needle into artery
Remove needle, leaving wire in place, and advance catheter over wire into artery, then remove wire
Some<unk>  needles have the wire integrated into flash chamber,<unk> lowing the wire to be advanced into artery and the catheter over the needle/wire system without removing the needle
Some<unk>  needles have the wire integrated into flash chamber,<unk> lowing the wire to be advanced into artery and the catheter over the needle/wire system without removing the needle
Ultrasound guidance of<unk>  placement has been shown to significantly increase first attempt success and decrease time to placement, and should be considered in<unk> l<unk>  placements
Arterial line
Rapid infusion catheter
Sheath introducer
Pediatric central line
Intraosseous access
Central venous catheterization
Vital signs 
Pulmonary artery catheter