The mnemonic
ATOM FC
What each word stands for
- AAirway obstruction
- TTension pneumothorax
- OOpen pneumothorax
- MMassive haemothorax
- FFlail chest
- CCardiac tamponade
Why it matters clinically
These need immediate treatment in the primary survey; others like contusion or aortic injury are secondary.
Where it stops being reliable
Some versions use different letter assignments and the list is not exhaustive.
Teaching aid, still awaiting independent review. Confirm facts in a standard source.