Identification
eFAST has particularly high sensitivity – about 95% according to ATLS [2].
Do note that there are drawbacks in detecting and interpreting the classical clinical signs:
- Neck veins may not be distended if the patient has haemorrhagic shock
- Distended neck veins may be caused by a tension pneumothorax
- Hypotension (and a raised respiratory rate) may have other causes
- Muffled heart sounds are difficult to hear in a noisy resus room