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_____ recieves the blood from the posterior tibial perforators and plays a major role in venous stasis of the lower extremity.
The posterior venous arch
A patient presents for a dedicated transcranial Doppler exam to rule out AV fistula. What should you do first?
Consult the radiologist regarding the inability to visualize the abnormality on TCD.
The distal anastomosis of a fem-fem graft is demonstrated. Which of the following statements correctly describe the findings?
The native CFA demonstrates retrograde flow which is a normal finding.
Which of the following is NOT a patient demographic that is collected to evaluate patient population statistics for those with vascular disease?
Employment history
In photo plethysmography, the sensor uses ____ to detect ____ changes.
Light, blood volume
Which of the following describes the correct way to measure the acceleration time for a renal artery waveform?
Place a caliper at the onset of the systolic stroke and at the early systolic peaK.
How can a sonographer correct for blooming on a spectral Doppler display?
Turn the Doppler gain down
When evaluating the Doppler wave form at a focal stenosis in the proximal ICA, which of the following Doppler characteristics will be demonstrated?
Increased peak systolic velocity, increased, end diastolic velocity
Which of the following normal vessels will collapse when you ask the patient to sniff quickly with moderate exertion?
Subclavian vein
What technique is recommended for evaluation of the main portal vein in an obese patient with ascites and significant bowel gas?
Patient in the left lateral decubitus or oblique position with intercostal transducer position
A 56 year-old female presents with mild calf pain that is caused by dorsiflexion of the foot. The symptoms began after she returned from vacation in France. Yesterday she noticed a sudden red color change and edema, localized to the lower leg. These clinical findings are most suggestive of:
Acute DVT