Author name: Nathan Nielsen

Dr Nielsen obtained his medical degree from the Duke University School of Medicine in Durham, North Carolina. During medical school, he also earned a Masters of Science in Control of Infectious Diseases from the London School of Hygiene and Tropical Medicine. Dr Nielsen completed an Internship and Residency in Internal Medicine at the Oregon Health and Science University in Portland, Oregon, where he later went on to complete a fellowship in Critical Care Medicine. He joined the Tulane faculty as an Assistant Professor in 2009. Dr Nielsen is a member of the Society of Critical Care Medicine, the European Society of Intensive Care, and the American Thoracic Society. His primary research interests are the effects of critical illness on red blood cell behavior and the effects of transfused red blood cells on the microcirculation of recipients. Clinical projects include developing an innovative analgesia and sedation protocol for the Tulane Medical Intensive Care Unit, and improving the teaching of invasive procedures to residents using the Tulane Simulation Center.

Welcome to the Tulane Critical Care Project!

We are honored to join the pioneering work launched by the Maryland Critical Care Project, and to become a member of the Critical Care Project family of websites. It is […]

Dr. Karin Halvorson earned her medical degree from the University of Hawaii. She completed a combined residency in Internal Medicine and Emergency Medicine at the University of Illinois at Chicago. Subsequently she attended Brown University for her Pulmonary and Critical Care Fellowship. While at Brown she was inducted into the Alpha Omega Alpha Honor Society and earned the 2014 Fellow Teaching Award. She served as the liaison between the emergency department and the intensive care unit during her time at Brown.

Dr. Halvorson is the Medical Director of Critical Care at Tulane University Medical Center where she splits her time between the MICU and the ED. Dr. Halvorson’s research interests are on ED to ICU transitions and optimizing early critical care. She is also invested in medical education and works with Housestaff on Quality Improvement Projects for Tulane University Medical Center.