Focused assessment with sonography for trauma (FAST) is a part of resuscitation of trauma
patients recommended by international panel consensus. The purpose of FAST is to identify
free fluid, which necessarily means blood in acute trauma patients. In this article, the authors
focused on various aspects of FAST in the emergency department, prehospital care,
pediatric setting, training and general pearls/pitfalls. Detailed techniques and interpretation
of FAST are beyond the scope of this article.

Ultrasound in trauma, whether in the case of an individual patient or that of a multiple-
casualty incident, has an important role in evaluation and immediate triage. The ultrasound
examination in the trauma room is brief and focused and should answer a single relevant
question:“Is there a hemoperitoneum?” In this article, the usefulness of focused assessment
with sonography for trauma (FAST) is reviewed for the different types of cases arriving in the
trauma room: blunt versus penetrating injuries, stable versus unstable patients, and children …