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Theory > CH 11,12,13 > Flashcards

CH 11,12,13 Flashcards

1
Q

Which TOS position is most vital to assess?
A. Abducted 90 degrees to torso (90 degree position)
B. Pledge position
C. Symptomatic position
D. Elevated 180 degrees above head (180 degree position)

A

C. Symptomatic position

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2
Q

Which one of the following is a characteristic of arteries in the arteriovenous fistula?
A. High volume triphasic flow
B. Low volume triphasic flow
C. High volume monophasic flow
D. Low volume biphasic flow

A

C. High volume monophasic flow

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3
Q

Which vein diameter would have the highest graft patency rate?

A: 0.6 mm
B: 1.3 mm
C: 2.7 mm
D: 1.5 mm

A

C: 2.7 mm

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4
Q

What is a normal acceleration time for tardus parvus flow in the lower extremity arteries?

A. Less than 0.14 seconds
B. Greater than 0.14 seconds
C. Greater than 1 second
D. Less than 0.10 seconds

A

A. Less than 0.14 seconds

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5
Q

Which of these lower extremity arterial duplex findings indicates the presence of a severe stenosis (>75%)?
a. Doubled peak systolic velocity
b. Flow reversal in early diastole
c. Acceleration time greater than 0.14 seconds
d. Lack of flow

A

c. Acceleration time greater than 0.14 seconds

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6
Q

The radial artery is commonly harvested and used for what graft procedure?

A. Short segment graft
B. Femoro-popliteal bypass graft
C. Coronary artery bypass graft
D. Femoro-tibial bypass graft

A

C. Coronary artery bypass graft

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7
Q

When taking a patient’s LT brachial pressure you notice it is 20 mmHg lower than the RT pressure. What would this suggest?
a. Normal/ no disease
b. Left iliac disease
c. Left Brachial artery disease
d. Left Subclavian artery disease

A

d. Left Subclavian artery disease

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8
Q

Which condition is arterialized venous flow seen in?
a. arteriovenous fistula
b. aneurysm
c. pseudoaneurysm

A

a. arteriovenous fistula

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9
Q

PVR amplitude should return to baseline levels within how many minutes to indicate a normal cold immersion study?
A. 8-10 minutes
B. 3 minutes
C. 5 minutes
D. Greater than 10 minutes

A

C. 5 minutes

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10
Q

When performing a PPG digit test, which of the following is a correct placement of the sensors?
A. Ring finger is number 2
B. Index finger is number 4
C. Thumb is number 5
D. Pinky is number 5

A

D. Pinky is number 5

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11
Q

What is a contraindication to performing an arterial bypass graft ?
a. If the patient has had prior surgeries in the same area
b. If the GSV is greater than 2.5mm
c. If the popliteal artery has an occlusion
d. If the GSV is being used as a collateral vessel

A

d. If the GSV is being used as a collateral vessel

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12
Q

During pre-op assessment for radial artery harvest (CABG) we have to make sure that patient has:
a) mixed dominance
b) ulnar dominance
c) radial dominance
d) complete palmar arch

A

d) complete palmar arch

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13
Q

When performing a digital evaluation for Raynaud’s using Test B, we need to ensure the patient is not experiencing vasoconstriction or vasospasm. What prep do we need to do before recording PVRs or PPGs?
A. Remove PPG sensors and place the symptomatic hand in a plastic bag and submerge it in ice water for 1-2 minutes
B. Wrap the asymptomatic hand in an electric heating pad and warm the hand for 5 minutes
C. Ensure the exam room is warm
D. Ensure the exam room is cold

A

C. Ensure the exam room is warm

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14
Q

While testing Palmar Arch patency, if all the PPG waveforms drop to flat-line or nearly flat-line with radial artery compression, the patient is _______ and a radial artery harvest is contraindicated.
A. Ulnar dominate
B. Mixed dominate
C. Radial dominate
D. Brachial dominate

A

C. Radial dominate

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15
Q

What is the difference between the usage of Parks Flo vs. Color Duplex?
A) There is no difference between the two
B) Parks flo is able to identify the exact location of occlusive disease whereas color duplex can only identify the region of area
C) Parks flo only shows a region of area whereas color duplex identifies the exact location of occlusive disease
D) Parks flo can only identify segmental pressures and not occlusive disease whereas color duplex can only identify occlusive disease

A

C) Parks flo only shows a region of area whereas color duplex identifies the exact location of occlusive disease

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16
Q

If a patient has an aneyrysm of a popliteal artery, what two other locations are likely to present with aneurysms?
A. A proximal popliteal artery aneurysm, and an abdominal aortic aneurysm
B. A contralateral femoral artery aneurysm and a carotid artery aneurysm
C. A contralateral popliteal artery aneurysm as well as an abdominal aortic aneurysm
D. An ipsilateral femoral artery aneurysm as well as a subclavian artery aneurysm

A

C. A contralateral popliteal artery aneurysm as well as an abdominal aortic aneurysm

17
Q

What is not an advantage of a Radial Artery harvest?
A) Thicker walls
B)Reduced risk of hyperplasia
C) Newer flexible placement through adductor canal
D) Better availability

A

C) Newer flexible placement through adductor canal

18
Q

Using the image below: What diagnosis could this flow pattern be associated with? Tall above baseline, shallow below baseline
A. Aneurysm
B. Arteriovenous Fistula
C. Pseudoaneurysm
D. Severe Stenosis (>75%)

A

C. Pseudoaneurysm

19
Q

what is a disadvantage of using a synthetic bypass graft?
A. they are not readily available
B. it has an increased risk of graft failure
C. the walls are very hard to see and evaluate in ultrasound evaluation
D.very flexible so its not stable and it can shift around

A

B. it has an increased risk of graft failure

20
Q

A patient presents with complaints about numbness, loss of function, and whitening of the fingertips when exposed to the bitter Chicago cold. This digital vasospasm is often induced by cold exposure or vibration injury and can even affect the toes. This is called ____________.
A. Buerger’s Disease
B. Thoracic Outlet Syndrome (TOS)
C. Raynaud’s Phenomenon
D. Marfan Syndrome

A

C. Raynaud’s Phenomenon

21
Q

When monitoring limbs for potential Thoracic Outlet Syndrome, a significant and sustained decrease in amplitde suggests what?
REMEMBER: TOS occurs when positional arm/hand pain, weakness, paresthesia
A. Vascular Compression
B. Small Vessel Occlusive Disease
C. Vasospasm
D. Vasodilation

A

A. Vascular Compression

22
Q

What is a normal Digit Brachial Pressure for upper extremity?
A) < .66
B) > .7 - 1.3
C) < .3
D) > .9 - 1.3

A

B) > .7 - 1.3

23
Q

When performing a pre-operative assessment to determine vessel suitability to revascularize the leg with a femoro-popliteal or femoro-tibial bypass graft which of the following would be a contraindication?
A. GSV is being used as a collateral pathway
B. GSV diameter of 2.5 mm
C. Continuous GSV
D. The GSV is duplicated

A

A. GSV is being used as a collateral pathway

24
Q

After taking the above spectral doppler, the sonographer could reasonably reflect:
A. “I’m surprised to find this in the brachial artery, since it would be more common to find in the innominate or subclavian arteries.”
B. “I’m surprised to find this in the innominate artery, since it would be more common to find in the radial or ulnar arteries.”
C. “I’m surprised to find this in the subclavian artery, since it would be more common to find in the brachial or axillary arteries.”
D. “This spectral could not have been taken from any of the Upper Extremity arteries.”

A

A. “I’m surprised to find this in the brachial artery, since it would be more common to find in the innominate or subclavian arteries.”

25
Q

What is the correct set regarding the causes of Raynauds Syndrome?
a. 40% connective tissue disorder, 20% idiopathic, 40% miscellaneous
b. 40% Arterial disorder, 20% idiopathic, 40% miscellaneous
c. 40% connective tissue disorder, 40% idiopathic, 20% miscellaneous
d. 40% Arterial disorder, 40% idiopathic, 20% miscellaneous

A

c. 40% connective tissue disorder, 40% idiopathic, 20% miscellaneous

26
Q

Where are doppler measurements taken in a stent during a follow up procedure?

A) Pre-stent and post-stent only
B) Pre-stent, prox, mid and distal segments of stent, post-stent
C) Only in areas of turbulence or excessive velocity increase
D) Prox, mid and distal segments of stent

A

B) Pre-stent, prox, mid and distal segments of stent, post-stent

Theory (4 decks)

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