USIDMS Extracranial Carotid
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| When do symptoms of a transient ischemic attack resolve? | Within 24 hours
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| What is the first branch off of the ECA? | Superior thyroid artery
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| 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
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| What artery does the right CCA branch off of? | Right brachiocephalic artery/inominate artery
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| A carotid endarterectomy may be performed when an artery is at least what percentage stenosed? | 70%
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| What percentage of blood flows from the CCA to the ICA? | 80%
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| What is the most important Doppler finding when determining an area of stenosis? | Increased velocity in the stenosis zone
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| With carotid occlusion, how will this affect the velocities in the contralateral side? | Velocities will increase to compensate for the other side
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| What rare none malignant tumors that can be found in the carotid body? | Paragangliomas
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| With a subclavian steal, which artery will experience retrograde flow? | The vertebral artery
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Created by:
ampund
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