Ch 6 Duplex Imaging of UEVs Flashcards
(37 cards)
Are the superficial veins more affected in the arms or legs?
Arms
Do veins in the legs or arms have more variability?
Arms
What is primary UEV thrombosis?
Pt’s that have no history of a venous puncture, known as effort thrombosis or paget-schroetter syndrome
What is secondary UEV thrombosis?
-Associated with the use of central venous catheters or malignancy
-Is m/c encountered
Why is thrombosis in the UEVs now more common?
B/c there is an increase in injury to the vein walls, due to frequent intro of needles + catheters into arm veins
Which 2 veins are commonly used for catheter insertion or drug administration?
Subclavian + IJV
List symptoms of SVC thrombosis?
Facial swelling or dilated chest wall venous collaterals
What is the pt prep + positioning for a UEV exam?
-Clothing + jewelry around arm removed
-Pt gown provided
-When imaging the subclavian + jugular veins, the bed must be flat with arm at side + head turned in opposite direction
-Imaging reset of veins can be done with bed flat or with head elevated
-The arm may be abducted to allow access to view the axillary vein
Do we perform compressions on the arm veins?
Yes! Every 2-3cm, same as with leg veins
PW doppler is performed on which arm veins?
IJV, brachiocephalic, subclavian, cephalic, axillary, brachial + basilic veins
Where is the EJV?
Posterior from IJV
Does the EJV have an accompanying artery?
No
Where does the EJV terminate into?
The subclavian vein
Do most protocols include imaging the EJV?
No, only if thrombosis is present in the extracranial neck veins
The brachiocephalic vein forms the ___?
SVC
Can we compress the brachiocephalic vein?
No
Which vein terminates into the subclavian vein?
The cephalic vein
The subclavian vein becomes the ___ vein?
Axillary
Because we can not compress the subclavian vein due to the clavicle, what other maneuver can be performed?
The sniff test - this quick inspiration should cause the vein to collapse
What are the 2 main superficial UEVs?
Cephalic + basilic (use high frequency)
We use a mid-frequency linear probe for which UEVs?
IJV, brachiocephalic, subclavian, axillary + brachial veins
What is the median cubital vein?
A vein that connects the cephalic + basilic veins at the antecubital fossa
Why is the MCV a common site for thrombus?
B/c it is used for venipuncture
The axillary vein begins at the junction of the ___ + ___ veins?
Cephalic + subclavian
