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Vascular technology boards > extra extra attention > Flashcards

extra extra attention Flashcards

1
Q

pitting edema can be caused by what?

A

increased venous pressure, CHF, renal hyper, electrolyte embalance

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2
Q

pressure is greatest where?

A

at the heart

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3
Q

what is an endarterectomy?

A

surgical removal of intraluminal atherosclerotic material

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4
Q

a ____ if often used to close the arteriotomy

A

patch

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5
Q 
all of the following are considered types of plethysmogrpahy except?
volume
air
displacement
photo
pressure
A

pressure

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6
Q

volume/air/true plethysmography mean the same things?

A

true

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7
Q

air cuffs are placed to obtain pleythsmography waveforms. they detect what type of changes?

A

true, volume changes. by the air being displaced by the arteries under it.

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8
Q

photopleth detects what?

A

cutaneous blood flow and records pulsations

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9
Q

fistulas closer to the heart are likely to cause?

A

heart failure due to increased blood volume coming back to the heart

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10
Q

what does increased acceleration indicate?

A

prox disease

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11
Q

where is the most common site for AV stenosis?

A

venous anastomosis and outflow vein

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12
Q

_____ is the mechanical widening of narrowed obstructed arteries by means of a balloon cath

A

angioplasty

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13
Q

what is the difference between a angioplasty and an endarterctomy?

A

angioplasty: dilates vessel ( widens vessel with balloon cath most often a stent is placed as well)
endarterctomy: surgical removal of atherosclerotic material

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14
Q

when is RAR not accurate?

A

presence of AO aneurysm or when AO peak systolic velocities are <40 or >90-100

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15
Q

incompetent valves in what perferator will most likely development a venous stasis ulcer

A

perforators of the posterior accessory great saphenous vein… aka the posterior arch vein

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16
Q

an ulcer caused by ______ will usually be deeper, more regular shape, often on the lateral malleolus

A

arterial insufficiency

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17
Q

where does the radial artery terminate in the hand?

A

deep palmar arch

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18
Q

where does the ulnar artery terminate in the hand?

A

superficial palmar arch

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19
Q

the _____ artery is the predominant source of blood flow to the hand?

A

ulnar

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20
Q

what are the drawbacks of analog recordings?

A

noise, less sensitivity, underestimate high velocities and over estimate low velocities

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21
Q

T/F analog recodings underestimate low recordings?

A

no over estimate

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22
Q

T/F analog tends to overestimate high frequencies

A

false under

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23
Q

NASCET says with a >=70% diameter reduction of the ICA what is the ratio that the NASCET uses?

A

> =4.0 ICA/CCA

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24
Q

pt comes in for DVT if they complain about 4 day history of redness and warmth what will most likely be the cause?

A

cellulitis

25
Q

T/F MRA tends to under estimate disease processes?

A

false over estimate

26
Q

Rt facial numbness and behavioral changes are related to what?

A

left MCA

27
Q

T/F decreased arterial resistance is seen with rejection of renal transplant

A

false. increase resistance is seen with rejection

28
Q

T/F native artery stenosis or occlusion is rarely found in upper extremity studies

A

true

29
Q

in addition to atherosclerosis another cause of significant stenosis of the main renal arty is?

A

FMD fibromuscular dysplasia

30
Q

a patient with thrombogangitis obl is most likely to have inflimation of what arterial wall layer/s?

A

all 3 layers

31
Q

one cause of right hemispherica infarction is?

A

rt ICA occlusion

32
Q

based on the society of radiologists in ultrasound consensus conference what is the criterion for a 70-99% diameter reduction?

A

PSV>230.EDV>100 and or ICA/CCA ration of 4.0

33
Q

when blood flow is reduced to the kidney the kidney usually produces what?

A

renin

34
Q

an acceleration time of 140msec at the CFA suggests what?

A

inflow disease AT >=133 is abnormal in CFV

35
Q

pulsatility index of _____ at the CFV is considered normal

A

> 5.5

36
Q

which method is most often used to measure toe pressure

A

photoplethysmography ppg

37
Q

in regarding interpretation of plethysmographic waveforms the severity of the disease is generally ?
over or underestimated

A

underest

38
Q

T/F the peroneal artery is palpable?

A

false

39
Q

T/F the Posterior tibial artery is palpable

A

True

40
Q

T/f the dorsalis pedis is a palpable pulse

A

t

41
Q

t/f with modified allen test you use a digital photoplethysmographic tracing

A

true

42
Q

t/f commonly used high level disinfectants are glutaraldehyde

A

t aka cidex

43
Q

t/fendotheial damage is part of virchows triad?

A

true

44
Q

another way of saying endothial damage?

A

trauma to the vessel

45
Q

venous sinuses serve as what?

A

temporary reservoirs

46
Q

when performing an ablation in the GSV what is an important landmark to properly positioning the laser sheath?

A

superficial epigastric as it joins the GSV image on page 345

47
Q

increased acceleration time is evident in the right proximal common carotid artery what does this suggest?

A

diameter reduction of the innominate artery

48
Q

what percent of blood in the common carotid artery flows into the iCA?

A

70-80%

49
Q

when evaluating the IJV you see the vein fully coapts, has continuous flow and exhibits rouleau formation. what are these findings consistent with?

a. wnl
b. proximal obstruction
c. most consistent with congestive heart failure

A

c.

50
Q

what is transmuscent anesthesia? What does it do and when is it used?

A

protects the perivascular tissue from thermal effects. the engorged tissue helps to compress the treated vessel to allow for better absorption to prevent skin burning and necrosis.

51
Q

Livedo reticularis is what?

A

purple patches ( similar to brusing) on the skin of the dorsum of the foot usually results from dialated capillary and venule filling not arterial obstruction

52
Q

penile peak systolic velocities increase after injection what is normal?

A

> 30cm/sec

53
Q

penile post injection, the deep dorsal venous flow should what? what is normal?

A

should not increase, <3cm/sec

54
Q

hypothenar hammer syndrome is what?

A

ulnar arterial aneurysm forms in response to using the palm of the had as a hammer

55
Q

what vessel is used for a cerebral angiography procedure?

A

common femoral

56
Q

what is normal reactive hyperemia?

A

17-34%

57
Q

with reactive hyperemia <50% drop suggests what?

A

single level

58
Q

with reactive hyperemia>50% drop suggests

A

multilevel

59
Q

for capillary filling normal skin color should return immediately upon release of pressure. a increase in capillary refill time of _____ seconds denotes arterial perfusion

A

3 seconds

Vascular technology boards (6 decks)

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