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NURS N676 Acute Limb ischemia Information sheet
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---6March 20242023/2024
- Acute Limb ischemia (ALI) 
Definition: 
Acute onset (<2 weeks) ischemia is severe hypoperfusion of limb with signs and symptoms including 
pain, paralysis, paresthesia, pulselessness, cold, and pallor which threatens tissue viability. Usually due 
to acute arterial occlusion and rarely due to venous etiology. 
Criteria for diagnosis 
! Must Be Recognized Rapidly. Skeletal Muscle Tolerates Ischemia 4-6 hours! 
 Onset < 2 weeks 
 Category I*; Viable: limb not immediately threatened; No...
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