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Text File  |  1997-01-28  |  365b  |  9 lines
  1.  
  2.       Catheters may sometimes need to be
  3.   placed into large veins through the skin. The
  4.   catheter differs from the port in that its end
  5.   is left outside the skin; the tube enters the
  6.   body through a small puncture. Catheters
  7.   usually have up to three inner lines so that
  8.   different solutions‚Äîmedication or
  9.   nourishment, for example‚Äîcan be given.