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DVT423-AP4
USIDMS Venous Insufficiency
Question | Answer |
---|---|
What is primary venous insufficiency characterized by? | Insufficiency caused by a congenital abscence of venous valves, or weakness in valve structure |
When doing an insufficiency exam, what position should the patient be in? | Semi-Fowler's or reverse Trendelenburg |
A 4-6 seconds post maneuver reflux time is considered what grade of reflux? | Grade 3 |
The greater saphenous vein at the sapheno-femoral junction will be consistent with reflux if it is greater than what measurement in diameter? | Greater than 9.0 mm |
90% of incompetent perforator veins will be greater than what diameter? | Greater than 3.5 mm |
What venous test uses infrared light to respond to changes in blood content in the subcutaneous circulation? | Photoplethysmography |
What is Homan's sign? | Presence of calf pain with dorsiflexion of the foot |
Is an ulcer that is deep with severe pain, little bleeding, and is located on the toe most likely a venous or arterial ulcer? | Arterial ulcer |
What type of venography is used to evaluate acute and chronic DVT by injecting contrast into the dorsum of the foot? | Ascending contrast venography |
Which perforator veins are of biggest concern when doing a venous insufficiency exam? | Cockett's perforators |