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What is a venous evaluation?
A venous evaluation uses non-invasive ultrasound to evaluate blood flow in the veins of the arms and legs. There are two main types of veins: deep veins and superficial veins. Deep veins lie well within the tissue and muscle. Superficial veins lie closer to the surface. Deep Vein Thrombosis (DVT) is the development of a blood clot in the deep veins. DVT is a serious condition which can lead to pulmonary embolism - the clot can break off and travel to the lungs causing severe disability or death. A superficial clot, although painful, generally does not run the risk of traveling to the lungs. A venous evaluation may also be performed to determine if the valves in your veins are working properly, (venous reflux or venous insufficiency exam). This exam requires the exam table to be tipped or the patient to be standing so the blood flow goes down into the legs. The vascular technologist will have the patient perform various techniques to determine whether or not the valves are closing properly. Varicose veins are looked at during this exam as well. During a venous evaluation, the vascular technologist will pass a transducer over the arm or leg to look at the blood flow in the veins.
What are the common indications for a venous evaluation?
Common signs and symptoms indicating the need for a venous evaluation may include one of the following:
How long does it take and how should a patient prepare for a venous exam?
A venous evaluation exam takes at least 1 hour to complete. Patients may need to remove any restrictive clothing including pants, shoes and socks as well as girdles or pantyhose. An upper extremity venous evaluation takes up to 45 minutes and requires the patient to where a loose fitting shirt. Depending on the area that needs to be examined, the patient may be asked to replace shirt/blouse with a gown.
NAVIX's Physician Preceptorship for Interpretation of Non-Invasive Studies is one of a few select programs available in the United States. All attendees of this program who have sat for the Registered Physician Vascular Interpretation (RPVI) exam have passed -that's a 100% pass rate for our participants!
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