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USIDMS Extracranial Carotid

When do symptoms of a transient ischemic attack resolve? Within 24 hours
What is the first branch off of the ECA? Superior thyroid artery
What appearance will a waveform have proximal to a severe stenosis? Increased pulsatility of the waveform or high resistance along with little flow in diastole
What artery does the right CCA branch off of? Right brachiocephalic artery/inominate artery
A carotid endarterectomy may be performed when an artery is at least what percentage stenosed? 70%
What percentage of blood flows from the CCA to the ICA? 80%
What is the most important Doppler finding when determining an area of stenosis? Increased velocity in the stenosis zone
With carotid occlusion, how will this affect the velocities in the contralateral side? Velocities will increase to compensate for the other side
What rare none malignant tumors that can be found in the carotid body? Paragangliomas
With a subclavian steal, which artery will experience retrograde flow? The vertebral artery
Created by: ampund