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Skin Changes in Lower Extremity Venous Insufficiency

10 Questions

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Skin Changes in Lower Extremity Venous Insufficiency

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Questions and Answers

What is the recommended size threshold for considering elective repair in asymptomatic patients with an aneurysm, according to the text?

1 cm

2.5 cm (correct)

3 cm

4 cm

What is the physiological effect of arteriovenous communication on the veins, as mentioned in the text?

Reduced blood flow

Thickening of the veins

Vein constriction

Volume overload (correct)

What is the investigation of choice for assessing distal vessels, as stated in the text?

Duplex (correct)

DSA

MRI

CT scan

What is the mechanism behind the yellow-brown or red-brown skin pigmentation seen in women with chronic venous insufficiency?

Accumulation of hemosiderin released from RBC breakdown in the dermis Signup and view all the answers

Which vascular assessment sign is characterized by white, coin-sized atrophic plaques due to absent capillaries in the fibrotic tissue?

Atrophie blanche Signup and view all the answers

During the Trendelenburg test for examining venous valves, what does it mean if there is no filling of the superficial veins when the leg is lowered after applying a tourniquet?

Blood flow from superficial to perforating veins is impaired Signup and view all the answers

What is the etiology of varicose veins according to the text?

Sedentary lifestyle and prolonged standing Signup and view all the answers

What is the pathophysiology behind chronic venous insufficiency as described in the text?

Incompetence of venous valves leading to reflux of blood Signup and view all the answers

What are common clinical presentations associated with varicose veins according to the provided text?

Unilateral edema and ankle swelling Signup and view all the answers

How does elevated venous pressure contribute to the formation of varicose veins as outlined in the text?

Leads to inflammation and atrophy of tissues Signup and view all the answers