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DVT398-AF2

USIDMS Lower Extremity Venous System

QuestionAnswer
What are the three things assessed with a venous duplex ultrasound? 1. presence or absence of thrombus 2. the relative risk of dislodging thrombus traveling to lungs 3. competence of the contained valves
What percent of patients with acute DVT may develop symptoms of postthrombotic syndrome? 30%
What criteria make up Virchow's triad? 1. venous stasis 2. vessel wall injury 3. hypercoagulable state
What is the danger of scanning a patient in the supine position? The veins are nearly closed due to low transmural pressure
Which is the longest superficial vein in the body? Great Saphenous Vein
What is the main drainage for blood leaving the calf? Popliteal vein
What are characteristics of chronic thrombus? -brightly echogenic thrombus -well attached thrombus -rigid texture -contracted vein -large collaterals
True or False: In a thrombosed vein, color flow and spectral waveforms will be absent and lack compressibility. True
What is it called when the left common iliac vein is compressed by the right common iliac artery? May-Thurner Syndrome
What is the primary treatment of acute lower extremity DVT? anticoagulation
Created by: arfair1
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