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DVT398-BL1
USIDMS Extracranial Carotid
Question | Answer |
---|---|
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 |
symptoms occur on what side of the body with a TIA? | opposite to the affected carotid artery and cerebral hemisphere |
how long do symptoms of a RIND last? | about 24-72 hours |
what type of resistance does the ICA have? | low resistance |
what helps reduce symptoms of high grade stenoses of the ICA? | circle of Willis |
what is bleeding within the plaque beneath an intact fibrous cap referred to as? | intraplaque hemorrhage |
what is the etiology of carotid artery thrombosis most often related to? | progressive atherosclerotic plaque |
which is located more posteriorly, the ICA or ECA? | ICA |
what is the first and largest branch of the aortic arch? | brachiocephalic artery |
what is the last branch of the aortic arch? | left subclavian artery |
what are the principal arteries supplying the head and neck? | right and left common carotid arteries |
which CCA branches directly from the aortic arch? | left CCA |
which of the carotid arteries has branches? | external |
where is the most common location for a stenosis? | bulb or Ica |
what is the most common pathology seen in a carotid ultrasound? | atherosclerosis |