Following medical school, Dr. Claudius completed residencies in Pediatrics and Emergency Medicine at University of California, Los Angeles before joining the USC, Keck School of Medicine faculty in 2002. Initially Dr. Claudius attended in the Emergency Department at Children's Hospital Los Angeles, then moved to the LAC+USC ED in 2009. Her research interests include Apparent Life-Threatening Events and Pediatric Mental Health. Currently, she is working on a multi-center project investigating the utility of different field triage methods and the fidelity of different drill scenarios for pediatric mass casualty incidents.