Final Review Spi Already Passed

In a vessel with a focal stenosis, the lowest pressure is found ____________________________. A. in the area with the most turbulence B. proximal to the stenosis C. at the narrowest point in the vessel D. just distal to the stenosis {Ans: C. at the narrowest point in the vessel}Which of the following will increase spectral broadening on the image? A. increased wall filter B. more laminar flow C. increased sample volume size D. increased PRF {Ans: C. Increased sample volume size}Which of the following is directly related to the peak Doppler shift? A. valsalva B. patient position C. sample size D. transducer frequency {Ans: D. Transducer frequency}While scanning the posterior tibial artery, a mirror image of the arterial signal appears on opposite side of the Doppler baseline. All of the following could assist in correcting the issue, EXCEPT: A. Try a new window where the vessel course is less perpendicular to the probe B. Try a new window that offers more space between the tibial bone and the artery C. Use the same approach and incident angle but use a CW non-imaging probe D. Turn down the Doppler gain {Ans: C. Use the same approach and