The mnemonic
ABCDE
What each word stands for
- AAirway
- BBreathing
- CCirculation
- DDisability — consciousness, glucose, pupils
- EExposure — examine fully and prevent hypothermia
Why it matters clinically
Treat life-threats in order as they are found.
Where it stops being reliable
In cardiac arrest the compressions-first order (CAB) is used instead.
Teaching aid, still awaiting independent review. Confirm facts in a standard source.