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USIDMS Extracranial Carotid

What process do most color Doppler systems use to generate a color image? Autocorrelation
What law or principle has to do with the conservation of energy? Bernoulli's Principle
Is there an increase or decrease in thoracic pressure during inspiration? Decrease
If a patient has a stroke in the left brain, could he or she experience amaurosis fugax on the right or left side? Left-Ipsilateral
Should thrombolytic therapy be administered to a patient that has had a hemorrhagic stroke- yes or no? No! It involves a clot-busting drug and could cause more bleeding.
Is a short acceleration time associated with a rounded waveform? No...short acceleration time = pulsatile waveform
What 3 arteries branch off the aortic arch? Rt brachiocephalic (innominate), Lt common carotid, and Lt subclavian
Do vertebral arteries usually have a high or low resistant waveform in a normal patient? Low resistant
The "drumbeat" sign can be seen proximal to an occlusion and will have what type of velocity/resistance? High or low? Low velocity/ High resistance
If you need to adjust your scale during an exam because of aliasing, what may it be called on the machine and should you increase it or decrease it? Increase, PRF
Created by: jmframe