Nurs 407 lab #4: central venous access device. The quality of not having a toxic or injurious effect on biological systems. Swelling of an extremity caused by obstruction of lymphatic vessels. Farthest from the heart; farthest point of attachment; below previous site of cannulation. Implanted vascular access port: attached to a reservoir (port) and placed completely underneath the skin and accessed using a non coring needle. A short-term type of cvad that is inserted directly. A type of cvad; catheter inserted above the antecubital fossa and threaded into the superior vena cava via the cephalic, basilica, or median veins. Medical-grade resins, widely varying in flexibility, used in chemical-resistant coatings and adhesives for making catheters for venous access. Peripheral i. v. catheter is often the first choice for short-term (i. e. , usually less than 1 week) infusion needs. A midline peripheral i. v. catheter might be best if therapy is anticipated to last between 1 and 4 weeks.