Table 2.

Rutherford classification of acute limb ischemia [8].

Class	Category	Prognosis	Sensory Loss	Muscle Weakness	Arterial Doppler	Venous Doppler
I	Viable	No immediate limb threat	None	None	Audible	Audible
IIA	Threatening:marginal	Salvageable if treated promptly	Minimal–none	None	Inaudible	Audible
IIB	Threatening:immediate	Salvageable if treated immediately	More than just toes	Mild–moderate	Inaudible	Audible
III	Irreversible	Limb loss or permanent damage	Profound	Profound	Inaudible	Inaudible