Which color combination is used to identify SST blood collection tubes?

Which color combination is used to identify SST blood collection tubes?

• A. Blue, Green, Purple, Pink
• B. Gold, Red, Grey, Red Black
• C. Gold, Blue, Grey, Red
• D. Yellow, Orange, Brown, Black

Answer: (B)

Serum separator tubes are identified by a gold-top appearance, signaling a clot activator with a gel for separating serum. In this material, the SST combination is described with gold, red, grey, and red-black elements, which reflects the cap color plus the gel/markings that distinguish these tubes from others. The other color groupings correspond to different additives and tube types (for example blue or purple tops indicate citrate or EDTA tubes, green indicates heparin), so they don’t identify SST tubes. The gold top with the accompanying red and grey (often noted as red-black) cues is what points to SST tubes.

Serum separator tubes are identified by a gold-top appearance, signaling a clot activator with a gel for separating serum. In this material, the SST combination is described with gold, red, grey, and red-black elements, which reflects the cap color plus the gel/markings that distinguish these tubes from others. The other color groupings correspond to different additives and tube types (for example blue or purple tops indicate citrate or EDTA tubes, green indicates heparin), so they don’t identify SST tubes. The gold top with the accompanying red and grey (often noted as red-black) cues is what points to SST tubes.