A) Acute Ischemia
- Acute Pain: embolism from heart, aneurysms
- Acute on chronic pain: Thrombosis in atherosclerotic Main symptoms - 5P’s: Pain, Pallor, Pulseless, parathesia; numbness, paralysis ⇒ necrosis
B) Chronic Ischemia
- Intermittent claudication: pain/cramping when there is movement, at rest it disappears - its due to inadequate blood supply to the muscles - (in some cases Rest pain can happen:  constant pain that occurs in the foot, relieved by dependency
Criteria:
- Pain in a muscle usually the calf (Muscles of thigh, buttocks or arm may also be affected)
- Pain develops only after muscle use
- Pain disappears with rest
Other presentations: Lower Limb ischemia
Finger/Toes discoloration - ischemia, and Ranuad’s phenomenon; due change of temperature or emotional events
- Ulceration
- Pulsatile mass
- Gangrene; brownish/black tissue; dead - no sensation & cold