Dr. Nathaniel Leu is an Emergency Medicine Consultant and Ultrasound Director for the Mayo Clinic Health Systems. He is also an Assistant Professor for the Mayo Clinic College of Medicine and Science. He is a graduate from the Cook County Hospital Emergency Medicine Residency and Highland Hospital Clinical Ultrasound Fellowship. Dr. Leu has been an invited speaker and workshop instructor at many national and international academic conferences including the Scientific Assemblies of ACEP, AAEM, MEMC, and ATS. His interests include medical education, application of ultrasound in critical care, and regional anesthesia in the Emergency Department.