Ultrasound Vascular Pathophysiology Exam
2025
what is an aortic aneurysm? - Correct Ans-a permanent localized dilatation of an artery
in an aortic aneurysm how much does the diameter increase? - Correct Ans-1.5 times
its normal size
who are high risk patients for aortic aneurysms? - Correct Ans-age over 60
smoking
COPD
hypertension
vascular disease
history of AAA
what are the factors contributing to an aortic aneurysm? - Correct Ans-atherosclerosis
trauma
congenital defects
syphilis
mycosis
marfan's syndrome
inflammation of media and adventitia
increased pressure (hypertension)
what is the most common cause of an aortic aneurysm? - Correct Ans-atherosclerosis
(all), arteriosclerosis (one)
what % of patients with an aortic aneurysm are asymptomatic? - Correct Ans-75%
what are the symptoms of an aortic aneurysm? - Correct Ans-intense back pain,
abdominal and flank, due to pain nausea and vomiting
what is most common aneurysm? - Correct Ans-thoracic aortic aneurysm
what are the 2 types of aneurysms? - Correct Ans-fusiform and saccular
what's the most common type of aneurysm? - Correct Ans-fusiform
at what measurement is an aortic aneurysm at high risk? - Correct Ans->6cm
at what measurement is an aortic aneurysm warrant surgical intervention? - Correct
Ans-4-5cm
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why is length important for an aortic aneurysm? - Correct Ans-to determine surgical
approach
why is the site important for an aortic aneurysm? - Correct Ans-to determine renal or
iliac involvement
do aortic aneurysm shrink? - Correct Ans-no
what is the u/s detection rate for an aortic aneurysm? - Correct Ans-98.8%
what is a fusiform aneurysm? - Correct Ans-a spindle-shaped arterial aneurysm in
which the stretching process affects the entire circumference of the artery
what is a saccular aneurysm? - Correct Ans-a saclike arterial dilation communicating
with the artery by a relatively small opening
what must a saccular aneurysm be differentiated from? - Correct Ans-lymphadenopathy
or a retroperitoneal mass
what is the shape of a saccular aneurysm? - Correct Ans-spherical and larger than
fusiform 5-10cm
can a saccular aneurysm extend into the iliacs? - Correct Ans-yes
patients with a <6cm aaa have what % for 1 yr survival? - Correct Ans-75%
patients with a >6cm aaa have what % for a 1 yr survival? - Correct Ans-50%
what is a pseudoaneurysm? - Correct Ans-pulsatile hematoma resulting from leakage of
blood into the soft tissue adjacent to the punctured artery
when can a pseudoaneurysm occur? - Correct Ans-after a cardiac catheterization or
angiography procedure
how is a pseudoaneurysm found? - Correct Ans-using color flow Doppler showing
communication between artery and vein
what is an aortic dissection? - Correct Ans-a progressive tear in the aorta
what happens to the walls/lining/intima in an aortic dissection? - Correct Ans-the intima
tears and blood surges through the tear creating a new false channel and separating
the middle layer from the outer layer of the aorta
where does an aortic dissection usually occur? - Correct Ans-in the thoracic aorta
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