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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 |