Which is the best definition of the gold standard?

What is referred to as an effort thrombosis usually secondary to repetitive movements?

Which exam uses air-filled, polyvinyl cuff, which surrounds the calf and functions as a sensing device to detect calf volume changes?

Which of the following criteria describes this post renal transplant biopsy complication?  

The vein of Giacomini extends from the small saphenous vein to which vein?

The right and left innominate veins unite to form the _______.

What is the major difference between primary and secondary varicose veins?

The use of a tourniquet at the upper thigh with a refill time that normalizes to greater than 20 seconds is indicitive of which statement?

Incompotence of this perforator group can lead to venous ulcers in the medial malleolus region of the leg. 

Which of the following ultrasouDilated chest wall collaterals are most often associated with which of the following?