Understanding Central Venous Catheters and Their Uses What is a Central Venous Catheter?A central venous catheter, also known as a central line, is a long, thin, flexible tube placed into a large vein in the neck, chest, or groin to administer medication or fluids, obtain blood samples, and measure central venous pressure. Central venous catheters allow access to the central circulation for critically ill patients who require extended intravenous...
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