BD Vacutainer Tube Lithium Heparin 68 IU 4ml draw (green)

BD Vacutainer Plasma tubes contain Sodium or Lithium Heparin and are used to obtain a plasma sample.  The concentration of the Lithium and Sodium Heparin additive in BD Vacutainer Plasma tubes is 17 international units of Heparin/ml of blood.  The additive in the Plus tube is spary coated on the inner wall.