A Central Venous Catheter (CVC) is a thin, flexible tube inserted into a large vein, typically in the neck, chest, or groin. It allows for easy access to the bloodstream for administering medications, fluids, or nutrients, and for drawing blood samples. CVCs are often used in patients who require long-term treatment, such as those undergoing chemotherapy or intensive care. CVCs can be placed using various techniques, including ultrasound guidance, to ensure accurate positioning. They are designed to remain in place for days to weeks, depending on the patient's needs. Proper care and maintenance are essential to prevent complications like infections or blood clots.