Chapter 11-14 Review Questions Flashcards
Why does duplex ultrasound have an advantage over contrast angiography for the examination of vessel walls?
the wall thickness can be measured
When assessing the appearance of plaque on a grayscale image, what might an irregular plaque surface indicate?
an area of ulceration
What are the advantages of synthetic grafts when compared to autogenous vein graft?
low rate of early technical problems
What is the most common cause of in situ vein bypass graft stenosis?
intimal hyperplasia
In the presence of an SFA occlusion, what vessel usually provides collateral flow?
deep femoral artery
What is the main pitfall in the interpretation of PVR waveforms and other physiologic data?
inability to determine approximate level of disease
Buerger’s disease is an arterial disorder involving which of the following vessels?
a. renal arteries
b. coronary arteries
c. pelvic arteries
d. digital arteries
d
Which of the following would be considered risk factors for the development of PAOD?
a. history of smoking
b. coexisting clinical conditions such as TIA, CAD, hypertension, and diabetes
c. family history of cardiac and/or peripheral vascular disease
d. all of the above
d
PW-Doppler spectral waveforms obtained from the common femoral arteries bilaterally are measured for the rise time (RT). The rise RT is 0.09 seconds, and the left is 0.19 seconds. What is the anatomic level of the occlusive disease?
left iliac disease
The innominate artery is also called the:
brachiocephalic
What is the first modality that should be used to examine a bypass graft?
B-mode
Which type of disease is associated with blueness of the toes?
aneurysmal disease
Which of the following is associated with vasospasm and digital color changes due to an underlying process such as scleroderma or trauma?
a. primary Raynaud’s phenomenon
b. thoracic outlet syndrome
c. secondary Raynaud’s syndrome
d. thromboangitis obliterans
c
When an arteriolar bed cannot dilate further and blood flow to the extremity is reduced due to proximal arterial disease, what symptom will the patient likely experience?
limb swelling
What is the term to describe an autogenous vein graft in which the vein retains its original anatomical direction?
orthograde