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DVT398-TB1

USIDMS Extracranial Carotid

QuestionAnswer
How can you tell the difference between the ECA and the ICA? The ICA is usually larger and more lateral. A temporal tap (TT) is used on the proximal ECA to help identify and slightly change part of the waveform. The ECA has extracranial branches.
What will cause the greatest change in blood flow? The radius of the vessel.
Where might an Eddy current be located? In the bulb of the Carotid artery.
What describes the time it takes to get from end diastole to peak systole? Acceleration time
Proximal to a severe stenosis, will you have increased or decreased pulsatility of the waveform? Increased
What are the 3 branches off of the aortic arch? Right brachiocephalic, left common carotid, left subclavian
The right brachiocephalic is also known as what? Innominate
What is the origin of the vertebral arteries? The subclavian arteries
The ECA has a ________ type of resistance, whereas the ICA has what type of resistance? high; low
With a transient ischemic attack or TIA how long does it take for the patient to recover? Patient is fine in less than 24 hours
Created by: Tburris5