Chap 17

Front 1

The position of tilting the exam table during a venous, legs are ~ 20o lower than upper body is reverse Trendelenburg. T/f

Back 1

True

Front 2

Spectral doppler with flat uniform signal toward the heart. (continuous flow not phasic) indicates what?

Back 2

- [ ] obstruction above the level of the scan.

Front 3

What is the main function of the superficial venous system under normal conditions?

Back 3

- [ ] to help regulate the body temperature

Front 4

Normal perforating veins flow from ___ to ___?

Back 4

- [ ] Superficial to deep

Front 5

The three components of Virchow's Triad include

Back 5

- [ ] Stasis, vessel wall injury, hyper-coagulability

Front 6

Which limb of Virchow's triad is demonstrated b a venous thrombus that starts at a valve cusp?

Back 6

Stasis

Front 7

Newly formed clotted blood within a vein, generally less than 14 days

Back 7

Acute thrombus

Front 8

What is the purpose of a WELL's score?

Back 8

- [ ] To determine a probability of a DVT/PE

Front 9

Which veins are typically not imaged in a venous duplex examination?

Back 9

- [ ] anterior tibial veins

Front 10

What would a high probability for DVT correspond to on Well's Score?

Back 10

>3 points

Front 11

A vein that is the companion vessel to an artery and travels within the deep muscular compartments of the leg.

Back 11

Deep vein

Front 12

A thrombus within which of the following veins carries the greatest risk of a major pulmonary embolism?

Back 12

Popliteal vein

Front 13

Which of the following is not a characteristic of chronic thrombus?

Back 13

Hypoechoic

Front 14

Small vein that connects the deep & superficial venous system; it passes btw the deep & superficial compartments of leg

Back 14

Perforating vein

Front 15

You can determine the exact age of a thrombus using venous duplex imaging. T/f

Back 15

False

Front 16

As venous thrombus ages, echogenicity:

Back 16

Increases

Front 17

Acute thrombus will have which characteristics?

Back 17

- [ ] Poorly attached to vein wall

Front 18

A continuous lower extremity right CFV Doppler signal can be expected in all of the following conditions except:

Back 18

- [ ] extrinsic compression of the contralateral common iliac vein

Front 19

Normal venous Doppler signals from the lower extremities exhibit all of the following characteristics except:

Back 19

Pulsatile

Front 20

Venous Doppler signals may be pulsatile if there is presence of a congenital arteriovenous fistula (AVF). T/f

Back 20

True

Front 21

What percentage of patients with deep vein thrombosis may develop symptoms of postthrombotic syndrome?

Back 21

30%

Front 22

nward projection of intimal layer of a vein wall producing 2 semilunar leaflets preventing retrograde movement of flow

Back 22

Valve

Front 23

Hypercoagulability which can lead to venous thrombosis is associated with all of the following except:

Back 23

Scleroderma

Front 24

Vein is superior to the musc compartment of the leg; travels w/in superficial facial compartment- has no artery with it

Back 24

Superficial vein

Front 25

A scoring system to determine the relative risk for a deep venous thrombosis is called the

Back 25

Well’s criteria

Front 26

chronic thrombus will have which of the following characteristics?

Back 26

Appears contractea

Front 27

If a patient dangles their legs over the side of the bed, the veins will be harder to compress, requiring more pressure. T/f

Back 27

True

Front 28

Thrombi are rare within the anterior tibial veins because:

Back 28

- [ ] they do no communicate with the soleal veins

Front 29

It is considered positive for Reflux in the superfical venous system when it exceeds

Back 29

500 ms

Front 30

What is the cause of the venous dilation observed with an acutely thrombosed vein?

Back 30

Increased venous pressure

Front 31

May-Thurner syndrome can result due to

Back 31

- [ ] the LCIV being compressed by the RCIA

Front 32

All of the following are associated with phlegmasia alba dolens except:

Back 32

Atrial ischemia

Front 33

Venous gangrene can be the result of:

Back 33

- [ ] phlegmasia cerulea dolens

Front 34

Venous Reflux:

Back 34

- [ ] flow in wrong direction including perforators

Front 35

What is the main function of the superficial veins?

Back 35

- [ ] assist with temperature regulation

Front 36

Clotted blood within a vein that has generally been present for a period of several weeks or months

Back 36

- [ ] Chronic thrombus