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DVT398-TB1
USIDMS Extracranial Carotid
Question | Answer |
---|---|
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 |