Final answer:
Blood collection tubes are evacuated to draw the blood into the tube, and their stoppers are color-coded based on the additives they contain. The filling order for tubes with and without additives depends on specific guidelines aimed at preventing cross-contamination.
Step-by-step explanation:
Concerning the collection and handling of blood collection tubes: The tubes are indeed evacuated so that the vacuum can draw the blood into the tube efficiently. Tube stoppers are color-coded to indicate the presence or absence of specific additives, supporting the quick identification and proper usage of the tubes during phlebotomy procedures. The statement about filling tubes without additives before tubes with additives is not provided with enough context to judge its accuracy, as the order of tube filling during phlebotomy is based on the standard set by the Clinical and Laboratory Standards Institute (CLSI) known as the 'Order of Draw.' Nevertheless, in general terms, a proper order of draw is crucial to prevent cross-contamination and maintain the integrity of the samples. Typically, blood culture bottles or tubes would be collected first if they are part of the collection.