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A pulsatility index of 6.0 is normal at the Common Femoral
Artery. The PI measurements obtained further distal in the
Increase
Popliteal and Posterior Tibial Arteries should if the
vessel is normal.
Turbulent Flow Window filling on the spectral display represents
wall filter setting too high/ or too low The following factor may result in false window filling
When obtaining a peak systolic velocity measurement us-
Parallel ing duplex techniques, the angle cursor should be adjust-
ed so that it is to the vessel wall.
Celiac Artery The first branch of the abdominal aorta is the
The common Femoral artery courses to the Common
Lateral
Femoral Vein.
over the left iliac vein The right common iliac artery crosses
Anterior Tibial The first branch of the Popliteal Artery is the Artery.
at the level of the adductor canal The SFA gives rise to the genicular artery
Continuous wave Doppler evaluations should be per-
60
formed using a degree angle.
Normal peripheral arteries should exhibit a type
Triphasic or Multiphasic
waveform characteristic.
Flow signals obtained distal to the site of stenosis will
Monophasic
exhibit a type waveform pattern.
A velocity ratio measurement of is indicative of
(greater than) > 4.0 stenosis of greater than 75% when evaluating Lower Ex-
tremity Arterial Disease.
Normally the ankle systolic pressure is than the
higher
brachial pressure.
, Patients with severe arterial disease and ischemic rest pain
> 40 mm/hg
generally have systolic pressures less than
Ischemic foot ulcers are not likely to heal if ankle pressures
80 mm/hg
are less than in a diabetic patient.
> 0.50 Single level occlusions have ABI measurements of
Ischemic rest pain is seen with pressure indices less than
< 0.40
A positive clinical response to a sympathectomy procedure
0.35
is predicted by an ABI greater than
Ankle brachial indices compensate for variations in central
allows for direct comparison for serial tests.
perfusion pressure which
When performing segmental pressures, the cutt bladder
20% width should be > then the diameter of the limb in
which pressures are being measured.
When performing segmental pressure measurements, a
(greater than) > 20-30 mm/hg ditterence between segments indicates signif-
icant arterial occlusive disease in that segment of vessels.
A horizontal ditterence of mm/hg suggests obstruc-
e20 0r 30 tive disease at or above the level in the leg with the lower
pressure.
A pressure gradient greater than 20 mm/hg between the
Popliteal above knee cutt and below the knee cutt suggests signifi-
cant artery disease.
An index measurement between the high thigh cutt and
Aorta-Iliac Disease
the brachial pressure of 0.8 suggests
External Iliac Artery What vessel supplies blood to the Common Iliac Artery
Left Renal Vein Which vessel is used as a landmark for the Left Renal Artery
, - *Peripheral Aneurysms* are most likely to *Embolize*
What are the most likely complications of aneurysm
- *Aortic Aneurysms* great risk to *Rupture*
During a Valsalva maneuver, flow is augmented, what is
Greater Venous Return
the significance of this finding
Embolism What is the most frequent etiology of Blue Toe Syndrome
Hepatic Vein occlusion Budd-Chiari syndrome is caused by
Upon auscultation, a pan diastolic bruit is heard. What is
Severe Arterial Stenosis
the finding most likely indicative of
Upon compression and release of the pulp of a digit, it is
Normal noted that it takes approximately 5 seconds for the color
to return to normal. What is the significance of this finding
To stress the circulation in the presence of severe ischemia What is the purpose of reactive hyperemia
What is the most likely etiology of plantar ulcers in a
Venous Insuflciency
diabetic patient
Upon TCD in the transorbital window, an antegrade signal
is received at a depth of 50mm. What vessel is most likely
being interrogated
Ophthalmic Artery
While performing a lower extremity venous duplex, the
technologist visualizes the Posterior Tibial Vessels. What
Anterior Tibial vessel
vessel would be visualized if the tech swept the probe
laterally
What should be the normal flow pattern of the ophthalmic
antegrade and low resistance
Artery at the transorbital window
Proximal obstruction