click below
click below
Normal Size Small Size show me how
DVT398-BL4
USIDMS Lower Extremity Venous Insufficiency
Question | Answer |
---|---|
What is the valved termed at the saphenofemoral junction? | terminal valve |
Which way to do the leaflets point? | to the direction of normal venous drainage |
What do incompetent valves permit? | abnormal retrograde flow or reflux |
What are visual signs of CVI? | spider veins, reticular veins, varicose veins, edema, ulceration |
What has become the standard to evaluate CVI? | duplex doppler ultrasonography |
What are treatment options for CVI? | ligation, thermal ablation, chemical ablation |
What allows for optimal dilatation and venous filling? | standing |
What is recommending minimum time between testing sites? | 30 seconds |
What are pitfalls of assessing venous reflux? | gain alters sensitivity or spectral doppler, high persistence, velocity scales |
What is normal venous flow waveforms? | spontaneous, phasic with respiration |