Test Bank Solution Manual for Vascular Sonography Chapter 7 Already Passed
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Course
Vascular Sonography
Institution
Vascular Sonography
Test Bank Solution Manual for Vascular Sonography Chapter 7 Already Passed
What is the secondary goal of examination of the extracranial carotid artery system by duplex ultrasound? - Answers To document progression of disease
Which transducer is most commonly used to perform a duplex evaluation...
Test Bank Solution Manual for Vascular Sonography Chapter 7 Already Passed
What is the secondary goal of examination of the extracranial carotid artery system by duplex
ultrasound? - Answers To document progression of disease
Which transducer is most commonly used to perform a duplex evaluation of the extracranial cerebro-
vascular system? - Answers 12-3MHz linear array
A patient presents to the vascular lab for a carotid-vertebral duplex examination. Upon questioning, the
patient reveals a 2-week history of intermittent blindness in the right eye. The symptoms resolve within
a few seconds. What would these symptoms indicate? - Answers TIA
How should the patient's head be positioned in order to expedite a carotid-vertebral duplex
examination? - Answers Head rotated 45 degrees away from side being examined with a pillow under
shoulders
What is the most common technique used to identify the vertebral artery? - Answers View the CCA and
angle the transducer slightly posteriorly
When qualifying the appearance of plaque by ultra-sound, the use of which of the following terms is
discouraged owing to poor reliability? - Answers Ulcerated
As plaque develops and fills the carotid bulb, what change can be expected in the Doppler waveform at
this level? - Answers Disappearance of normal flow separation
Which of the following will NOT result in symmetrical (i.e., seen in both carotid and sometimes vertebral
arterial systems) changes in the Doppler spectra? - Answers Subclavian steal
In a normally hemodynamically low-resistance system or vessel, such as the internal carotid and
vertebral arteries, what will a change to high-resistance pattern suggest? - Answers Distal stenosis or
occlusion
What is reactive hyperemia, a provocative maneuver used during the duplex evaluation of the extracra-
nial cerebrovascular system, used to demonstrate? - Answers A change from latent or partial to
complete subclavian steal
Which of the following is NỚT "sound" advice for sonographers who wish to prevent repetitive stress
injuries while scanning? - Answers Avoid doing stretching exercises
Which of the following is NOT a characteristic of normal Doppler waveform contour? - Answers
Increased, spectral broadening
Why do Doppler waveforms in the common carotid arteries display a contour suggestive of relatively
low-resistance flow? - Answers 70% of its flow supplies the ICA
What type of flow is characterized by a blunted, resistive waveform that often occurs as disease
progresses to near occlusion? - Answers string sign flow
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