The course objective is to provide an extensive evaluation of the lower extremities through arterial and venous testing techniques including indirect physiologic testing such as: pulse volume recordings, ankle-brachial indexes, photoplethysmography, segmental pressures (4- and 3-cuff methods), toe raises, and venous stress testing. Lower extremity arterial and venous ultrasound techniques and protocols will be practiced with color duplex imaging, B-Mode, and Doppler evaluation. Anatomy of the venous and arterial upper and lower extremity will be covered. Optimal instrumentation settings will be practiced to obtain diagnostic images and accurate reports for physician evaluation. Diverse pathologies of the upper and lower extremities will be reviewed and discussed.