Vascular Technology 1 Final| 91 QUESTIONS| WITH COMPLETE SOLUTIONS

Where could the stenosis be located based on this signal obtained in the distal left CCA? CORRECT ANSWERS: Left CCA Origin Arterial pressures can be ____________ distally if the patient has developed good collateralization. CORRECT ANSWERS: Normal Spectral Doppler of a carotid exam can define what CORRECT ANSWERS: Provide physiologic information What is the most important component to observe to prove absence of DVT? CORRECT ANSWERS: Complete collapse of lumen What is the minimum diameter needed for the vein to be a good conduit? CORRECT ANSWERS: Greater than 2.5mm List and provide a BRIEF description of the six components of a venous examination to think about when ruling out DVT? CORRECT ANSWERS: Compressibility - Being able to compress the vessel every transducer width Spontaneous - Waveform is in relation to the cardiac cycle Phasic - Flow should fade in and out with normal breathing Augmentable - Documents vessel patency Nonpulsatile - Confirming artery vs. vein Unidirectional - Venous flow should only travel in one direction (shown below baseline) What is a normal GSV diameter at the calf? CORRECT ANSWERS: 3mm This image was obtained from a patient's CFVs bilaterally. What is most likely causing this waveform? CORRECT ANSWERS: CHF What is the degree of stenosis in this patient with the following findings? Plaque visualized, Right DCCA peak velocity of 30cm/s, Right PICA peak systolic velocity 190cm/s; end diastolic velocity 73cm/s CORRECT ANSWERS: 70-99% Describe this signal. CORRECT ANSWERS: Oscillating Approximately how much reflux is demonstrated in this waveform? CORRECT ANSWERS: 2-3 sec Which is the correct ABI calculation? CORRECT ANSWERS: (highest ankle pressure) / (highest brachial pressure) What is being measured in t