Doctors use a central line to puts lots of fluid into a large vein, such as the one in the head & neck
.... lines - the ones that go into patients who need fluid resuscitation of one 
kind or... [DOC] [TLE] PICC lines - Information and support - Macmillan Cancer Support [PAR] A PICC line is a long, thin, hollow tube that a doctor or nurse puts into a vein ...