Sterile vacuum blood collection tubes for serum determination Spray-coated silica interior Tubes marked as Best Practice Formulary meet demanding requirements of complex diagnostic instruments and current clinical guidelines With conventional tube stopper Evacuated Tubes Simplify Blood Collection Blood is drawn directly from the vein into the evacuated sterile collection tubes Only one venipuncture is needed to draw multiple samples Tubes can be changed while needle and plastic holder remain in place on patient's arm Closures are color coded Plastic Evacuated Tubes Made of polyethylene terephthalate (PET) Provide a safer work environment for all personnel by (1) reducing risk of tube breakage during handling; (2) eliminating breakage when tubes are centrifuged at higher speeds; and (3) eliminating breakage or chipping of tube rims when stopper is removed and reinserted In addition to reducing potential injuries, fewer tube breakages result in less workflow interruption and fewer patient redraws, providing smoother day-to-day operation