The mnemonic
The six Ps
What each word stands for
- PainSevere, sudden pain in the limb
- PallorPale limb
- PulselessnessAbsent distal pulses
- ParaesthesiaSensory loss or tingling
- ParalysisMotor loss, a sign of threatened viability
- Perishing coldCold limb
Why it matters clinically
Sensory and motor loss mean the limb needs urgent revascularisation.
Where it stops being reliable
Does not distinguish embolism from thrombosis, which determines treatment.
Teaching aid, still awaiting independent review. Confirm facts in a standard source.