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DVT398-SW2

USIDMS LE Venous Doppler

QuestionAnswer
True or False: Venous blood flow should be from the deep to superficial system. False. Superficial to Deep.
Define Hydrostatic Pressure. Gravity pulling blood towards the feet and is related to a person's height and body position.
What three things cause Vasoconstriction? 1. cold sensitivity 2. emotional stress 3. certain chemicals ingested or inhaled (nicotine)
When there is vasoconstriction what happens to the capillary blood flow volume and peripheral resistance? Decrease in capillary blood flow volume and an increase of peripheral resistance.
What is the cause of Primary Venous Insuficiency? A congenital absence of some valves.
What is the veno-motor pump that propels blood to the heart? Calf muscles.
What conditions are present in Virchow's Triad for DVT to occur? 1. Circulatory stasis 2. Vein wall/ intimal injury 3. Hypercoagulable state
True or False: Acute DVT is highly echogenic on ultrasound. False
When you scan a patient and find a chronic venous thrombosis what could you see? Highly echogenic thrombus, visible collaterals, contracted vessel, abnormal Doppler, and recanalization.
Define the term brawny. Brownish.
Created by: slwilliams2
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