Patients with difficult vascular access (DVA)
May be particularly useful in patients with<unk>  venous distention/volume overload
May be particularly useful in patients with<unk>  venous distention/volume overload
External jugular vein cannulation
Central venous catheterization
Ultrasound-assisted peripheral line placement
Intraosseous access
Pulmonary artery catheter
Arterial line
Peripheral IV placement
Needle cricothyrotomy