Five Ps of critical limb ischemia

Five Ps of critical limb ischemia (acute limb ischemia)

  1. Pain
  2. Pallor
  3. Paraesthesia
  4. Paralysis
  5. Pulselessness

Some authors add one more – Poikilothermia and make it Six Ps of critical limb ischemia.
Poikilothermia means that the limb has lost its temperature control mechanism. Hence it assumes room temperature, usually colder than rest of the body.