Summary – Arterial occlusion – Causation – Emergency – Six Ps – Three categories – Appropriate treatment www.specialistswithoutborders.org
1. Acute occlusion of a previously normal artery results in severe ischaemic symptoms because: a. it occurs without warning b. occlusion of a normal artery is rare c. there are few collateral vessels to supply the limb d. embolism cannot occur in a diseased artery 2. Compartment Syndrome occurs in the ischaemic limb: a. leading to a reduction in pain b. because ischaemic muscle shrinks c. when muscle is re-perfused after a period of ischaemia d. due to reduced blood flow www.specialistswithoutborders.org
3. Acute limb ischaemia caused by embolism occurs due to: a. acute thrombosis of a chronic stenosis b. occlusion of an artery when clot travels from one site to another c. thrombosis of an aneurysm d. clot moving from the venous to arterial circulation in some cases 4. Features of an acutely ischaemic limb requiring immediate treatment include: a. complete paralysis b. complete sensory loss c. absent pulse and Doppler signal d. all of the above www.specialistswithoutborders.org
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