What do perforating veins do?

The most accurate method to determine that a vein at any given point is thrombus free is to:

Normal lower extremity venous Doppler signals respond to normal breathing patterns by:

A pulsatile lower extremity venous Doppler signal can be expected with all of the following conditions except: 

The three components of Virchow's triad are:

All of the following are common symptoms associated with deep venous thrombosis except: 

While examining a patient supine on an examination table with a slight tilt, you find it difficult to visualize the calf veins. What step can be done to visualize the vein? 

A major storage area for blood in the lower extremity is:

What technique can be employed to improve adequate compression of the superficial femoral vein as it passes through the adductor canal? 

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

Two drugs commonly used to treat patients with deep venous thrombosis include: 

Thrombi in the upper extremity are rarely caused by stasis because: 

The median cubital veins connect the:

Which vessel is most likely the site of thrombus with a PICC line insertion?

If a patient takes a breath through pursed lips, what result will be evident in the subclavian vein? 

This upper extremity vein is almost always present as bifid system. 

Characteristics of an acute thrombosis in the upper extremity include all but:

When performing vein mapping, limiting the amount of gel allows for easier skin marking as well as:

The ideal position for venous mapping of the lower extremities is:

Which statement best describes the occurrence of venous calcification? 

During chemical ablation of the GSV, bubbles are normally not detected in the:

Ultrasound follow-up post thermal ablation of the saphenous vein may show all of the following except: 

During chemical ablation or foam sclerotherapy, ultrasound can detect specific echoes in the veins that are:

Which of the following correctly describes the alignment sign? 

Harding of the skin is known as: 

A major advantage of the use of an automatic compression device is:

Which is not an alternative to Valsalva maneuver?