133 Chapter 7 Blood Collection Equipment, Additive and Order of Draw LABELING EXERCISES LABELING EXERCISE 7-1: TUBE STOPPER COLORS AND ADDITIVES Color the tube stoppers of the following ETS plastic tubes according to the list of tubes below. If the tube contains pel, color the area of the tube that would contain the wel yellow. Using the list of additives, write the letter() of the possible tube additive(s) inside the corresponding tube. Note: Additive choices may be used more than once, and some tube choices may have more than one additive Tubes 1. Gray top 2. Green top (nongel) 3. Lavender lop 4. Light blue top 5. Pink top 6. PPT 7. PST 8. Red top 9. Royal blue top 10. SST 11. Yellow top (immunohematology) 12. Yellow top (microbiology) Additives A. Acid citrate dextrose (ACD) B. Clot activator (silica) C. EDTA D. Heparin E No additive F. Potassium oxalate G. Sodium citrate H. Sodium fluoride Sodium polyanethole sulfonate (SPS) J. Thixotropic gel