Required Skills: Adult, Emergency Department, Doppler Studies, Lower Extremity Arterial, Lower Extremity Venous, Peripheral Vascular Resistance, Portables, Renal Artery Duplex, Upper Extremity Arterial, Upper Extremity Venous. Travel, per diem, permanent — we have the reach and access to get you the jobs you want, and the expertise to help you realize your long-term goals.