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The arteriovenous oxygen difference, or a-vO 2 diff, is the difference in the oxygen content of the blood between the arterial blood and the venous blood. It is an indication of how much oxygen is removed from the blood in capillaries as the blood circulates in the body.
[akÂ´ses] a means of approaching something. arteriovenous access the usual type of vascular access, connecting an artery and a vein, usually in the arm. hemodialysis access (vascular access) the means by which hemodialysis apparatus is connected to blood vessels; the most common type is arteriovenous access.