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Updated: Aug 12, 2025

Focused Assessment with Sonography for Trauma FAST Exam: Image Acquisition
Published on: September 22, 2023
Guiding Emergency Treatment With Extended Focused Assessment With Sonography in Trauma by Emergency Responders (GET
Matthew R Shaw1, Iv Godzdanker1, Nicolaus Hawbaker1
1Northern Arizona Healthcare, Flagstaff, AZ.
Paramedics can be trained in point-of-care ultrasound (eFAST) for trauma patients. While interpretation was accurate, this study did not demonstrate improved patient outcomes, but eFAST may aid resource allocation.
Area of Science:
- Emergency Medicine
- Point-of-Care Ultrasound
- Trauma Care
Background:
- Prehospital medicine faces challenges managing critically ill patients without hospital resources.
- Point-of-care ultrasound (POCUS) offers potential to bridge this gap by providing critical insights in trauma patients.
Purpose of the Study:
- To determine if early positive extended focused assessment with sonography in trauma (eFAST) identification by paramedics improves patient outcomes.
- To assess the feasibility and accuracy of paramedic-performed eFAST examinations.
Main Methods:
- Prospective observational trial conducted from February 2019 to August 2021.
- Paramedics with no prior ultrasound experience received training in eFAST examinations.
- 502 eFAST examinations were performed and analyzed for accuracy and impact on patient outcomes.
Main Results:
- Thirty-seven paramedics achieved a high correct interpretation rate (97.35%) for eFAST examinations.
- Sensitivity ranged from 30.0% to 75.0%, and specificity from 94.05% to 98.75%.
- On-scene time for eFAST and non-eFAST calls was not significantly different (P = .051).
Conclusions:
- Successful training and interpretation of eFAST by paramedics were demonstrated.
- The study did not find improved patient outcomes, likely due to low disease prevalence.
- High likelihood ratios suggest eFAST may be valuable for appropriate trauma resource utilization.
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