After viewing this presentation, the participant should be able to: Discuss the basic fundamentals of ultrasound physics and instrumentation; explain the advantages of using ultrasound-guided nerve block techniques; identify the topographic and cross-sectional anatomy for upper extremity nerve block sites using ultrasound; demonstrate techniques for performing ultrasound-guided anesthesia applications including: interscalene blocks (brachial plexus), infraclavicular blocks, axillary blocks, musculocutaneous blocks. An enclosed CME Quiz ($25.00 processing fee) can be submitted to Gulfcoast Ultrasound Institute for 2.0 AMA Cat. 1 CME credits, if needed. All AMA Category 1 credits are acceptable for ARDMS and ARRT (Cat. B only) requirements.