Patients with an ABI of <0.5 warrant admission after immediate consultation with vascular surgery
Patients with stable ABI measurements, resolved pain, and chronic occlusive disease can be discharged with vascular surgical follow-up.
Acute arterial ischemia
Peripheral artery disease
Venous gangrene
Vascular injury
Wet gangrene
Missile embolus
Atheroembolism 
Dry gangrene