Deep Vein Thrombosis/ Chronic Venous Insufficency Flashcards
What is a positive Homans sign?
Leg pain on dorsiflexion of the foot
 Think DVT
What is the gold standard for DVT evaluation?
Contrast Venography though it’s invasive and painful and rarely used in practice
What is the initial preferred to study for DVT evaluation?
Compression ultrasonography

What diagnostic should be utilized if a patient has a leg cast that prevents compression ultrasonography and in pregnant patients with a positive D dimer any negative CUS?
MRI direct thrombus image imaging
What is the clinical probability assessment model used to estimate the probability of a DVT?
Wells criteria, consists of 10 yes or no questions
A high well’s score would indicate what?
Further evaluation is required to investigate possible DVT
An elevated d-dimer means what?
It’s suggest to investigate further but is not definitive in diagnosing a DVT exist
Chronic venous insufficiency Is caused by what?
Sustain venous hypertension in the lake, then valve failure with reflux, post thrombotic syndrome in which a deep venous thrombosis causes outflow obstruction
What diagnostics are needed for evaluation of chronic venous insufficiency?
Duplex ultrasonography, palpation of pulses and or determination of ankle brachial index
 What is recommended for non-pharmacological therapy for chronic venous insufficiency?
Leg elevation above heart for 30 minutes for 3-4 times a day
Weight reduction
Walking exercises to improve calf function
For weeping skin lesions do wet to dry dressing
Compression stockings are contraindicated in patients with an ankle brachial index of what?
Is contraindicated in patients with a ankle brachial index in less than 0.6
For chronic venous insufficiency what is best to do ? Elevate or stay dependent 
Elevate
