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A PICC line is a long, thin, hollow tube that a doctor or nurse puts into a vein above the bend of your elbow. It is used to give you chemotherapy and other medicines. A PICC line is a long, thin, hollow tube that a doctor or nurse puts into a vein above the bend of your elbow.
Introduction to your PICC. A PICC (or Peripherally Inserted Central. Catheter) is a catheter that is made of soft, pliable. material. It is inserted into your arm vein, usually just. above or below the inner bend of your elbow, and. then threaded up into a larger vein in your chest.