SonoSim Mastery Arm-Venous

When using ultrasound to identify veins, the lumen ______________.

-- diameter changes with compression -- is anechoic

As blood flows through proximal arm veins __________.

-- its velocity varies -- its flow velocity increases during inhalation

What factors directly contribute to venous return of blood to the heart?

-- respiratory system dynamics -- contraction of skeletal muscle

The body's venous system_____________

-- stores 60 to 70 percent of the blood volume -- delivers a continuous supply of blood to the heart

When using ultrasound to examine upper-extremity veins, ______________.

A long axis view will enable visualization of venous valves and sinuses

Venous valves _________________

All of the following: -- are found at venous sinuses -- are generally composed of two cusps, but may hae one or three cusps -- prevent backflow of venous blood

The superficial veins of the arm ______________.

All of the following: -- include the cephalic vein, which courses anterolaterally over the biceps -- include the basilic vein, which courses medially over the biceps muscle -- are connected by the median cubital vein

As one moves proximally up the arm (towards the head) with an ultrasound transducer ___________________

All of the following: -- veins tend to coalesce -- veins tend to become larger -- veins still remain compressible

Upper extremity superficial veins _________________.

Are responsible for the majority of venous drainage in the arm

The brachial veins coalesce in the antecubital region and subsequently _______________.

Branch into the radial and ulnar veins

Which vessel is demarcated by the arrow in this image?

Median cubital vein

When using color Doppler to distinguish a deep artery from its corresponding vein, _____________.

The artery should exhibit pulsatile color-flow signal

What vessel is demarcated by the arrow in this image?

cephalic vein

A high-frequency linear footprint ultrasound transducer is ideally suited for visualizing vascular structures.

True

The forearm basilic and cephalic veins drain blood from the dorsal venous arch network in the hand.

True

The transducer used to obtain this image should be rotated 90 degrees to visualize this vessel in long-axis.

True

What statement regarding the sonographic characteristics of veins of the upper extremity is correct?

all of the following: -- venous return can be augmented with distally applied external compression -- blood flow should be unidirectional within a vessel -- the diameter of proximally located, deep veins will vary with the respiratory cycle

The subclavian vein becomes the axillary vein ______________.

as the vessel crosses over the border of the 1st rib

Which of the following veins are classified as upper-extremity superficial veins?

basilic and median cubital veins

At the ___________ level, an interchange of intralumenal vascular fluid and surrounding interstitial fluid occurs.

capillary