A 15-Year-Old Male With Persistent Knee PainShea, Sheila Sanning MSN, RN, ANP, CEN Section Editor(s): Ramirez, Elda G. PhD, RN, FNP-BC, FAANP; Column EditorAdvanced Emergency Nursing Journal: July/September 2011 - Volume 33 - Issue 3 - p 205–211 doi: 10.1097/TME.0b013e31822611d0 Imaging Abstract Author Information Most children and adolescents who present with extremity pain in the emergency department (ED) have minor injuries or musculoskeletal problems that are easily diagnosed and managed. A history of a child or teenager with persistent extremity pain lasting more than a few weeks or pain that wakes the child at night is of clinical concern and requires investigation. There are serious clinical etiologies that must be included in the differential diagnosis of this group of patients. It is essential to take the time during the initial screening examination to determine the real reason for each patient ED visit and review previous medical care. Emergency Department, St. Mary Medical Center, Long Beach, California. Corresponding Author: Sheila Sanning Shea, MSN, RN, ANP, CEN, Emergency Department, St. Mary Medical Center, 529 E. 10th Street, Long Beach, CA 90813 (firstname.lastname@example.org). Disclosure: The author reports no conflicts of interest. © 2011 Lippincott Williams & Wilkins, Inc.