USIDMS Extracranial Carotid
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| what is a major indication for a duplex scan of the carotid and vertebral arteries? | asymptomatic neck bruit; hemispheric cerebral or ocular transient ischemic attacks, history of stroke, screening prior to major cardiac surgery
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| symptoms occur on what side of the body with a TIA? | opposite to the affected carotid artery and cerebral hemisphere
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| how long do symptoms of a RIND last? | about 24-72 hours
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| what type of resistance does the ICA have? | low resistance
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| what helps reduce symptoms of high grade stenoses of the ICA? | circle of Willis
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| what is bleeding within the plaque beneath an intact fibrous cap referred to as? | intraplaque hemorrhage
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| what is the etiology of carotid artery thrombosis most often related to? | progressive atherosclerotic plaque
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| which is located more posteriorly, the ICA or ECA? | ICA
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| what is the first and largest branch of the aortic arch? | brachiocephalic artery
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| what is the last branch of the aortic arch? | left subclavian artery
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| what are the principal arteries supplying the head and neck? | right and left common carotid arteries
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| which CCA branches directly from the aortic arch? | left CCA
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| which of the carotid arteries has branches? | external
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| where is the most common location for a stenosis? | bulb or Ica
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| what is the most common pathology seen in a carotid ultrasound? | atherosclerosis
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