A PICC line, or Peripherally Inserted Central Catheter, is a long, thin tube inserted into a vein in the arm. It is used to deliver medications, fluids, or nutrients directly into the bloodstream. This type of catheter is particularly useful for patients who require long-term intravenous therapy. PICC lines can remain in place for weeks or months, making them ideal for treatments like chemotherapy or long-term antibiotics. They are inserted by trained healthcare professionals using sterile techniques to minimize the risk of infection. Regular monitoring and care are essential to ensure the line remains functional and safe.