• Jonathan E Slutzman, Lisa A Arvold, Joshua S Rempell, Michael B Stone, and Heidi H Kimberly.
• Department of Emergency Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.
• J Emerg Med. 2014 Oct 1;47(4):427-9.

BackgroundThe focused assessment with sonography in trauma (FAST) examination is an important screening tool in the evaluation of blunt trauma patients.ObjectivesTo describe a case of a hemodynamically unstable polytrauma patient with positive FAST due to fluid resuscitation after blunt trauma.Case ReportWe describe a case of a hemodynamically unstable polytrauma patient who underwent massive volume resuscitation prior to transfer from a community hospital to a trauma center. On arrival at the receiving institution, the FAST examination was positive for free intraperitoneal fluid, but no hemoperitoneum or significant intra-abdominal injuries were found during laparotomy. In this case, it is postulated that transudative intraperitoneal fluid secondary to massive volume resuscitation resulted in a positive FAST examination.ConclusionThis case highlights potential issues specific to resuscitated trauma patients with prolonged transport times. Further study is likely needed to assess what changes, if any, should be made in algorithms to address the effect of prior resuscitative efforts on the test characteristics of the FAST examination.Copyright © 2014 Elsevier Inc. All rights reserved.

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