It is an extension of the FAST scan, which is primarily used to detect free fluid (usually blood) in the abdominal cavity.
The eFAST scan adds the assessment of the chest for pneumothorax and hemothorax.
It helps guide immediate medical or surgical interventions, potentially improving patient outcomes in trauma situations.
1. Detects free fluid in the abdomen or pericardium
2. Will not reliably detect less than 100 mL of free blood
3. Does not directly identify injury to hollow viscus
4. Cannot reliably exclude injury in penetrating trauma
5. May need repeating or supplementing with other investigations
6. Is unreliable for assessment of the retropertoneum