Trauma / Emergency · 6 Windows · Free Access
eFAST Navigator
Extended Focused Assessment with Sonography in Trauma
Systematic 6-window eFAST protocol — abdominal free fluid, pericardial effusion, and bilateral pneumothorax / hemothorax assessment.
Exam Progress0 / 28 items
16 critical items not yet assessed
Free Fluid Grading
Trace
< 250 mL
Thin anechoic stripe (< 5 mm) in one dependent space
Mild
250–500 mL
Stripe in one or two spaces, < 1 cm depth
Moderate
500–1000 mL
Fluid in multiple spaces, 1–2 cm depth
Severe
> 1000 mL
Large collections in multiple spaces, free-floating bowel
Position: Probe marker cephalad. Identify liver-kidney interface (Morison's pouch). Fan through the space.
Morison's pouch — free fluid (anechoic stripe)Critical
Liver parenchyma — lacerations / hematoma
Right kidney — perinephric hematoma
Right subphrenic space — free fluidCritical
Right pleural space — hemothoraxCritical
Clinical Pearls
- →Fan superiorly to assess the subphrenic space — often missed
- →Fluid in Morison's pouch tracks from the pelvis — always check pelvis too
- →Hepatic veins entering the IVC confirm correct depth
POCUS-Assist™ Engine
Guideline-based calculators for eFAST findings