Micro Blood Collection Tubes

This series of capillary micro blood collection tubes is designed for tiny blood sampling from newborns and children with standard 0.5ml volume, including 3 types for different tests: green heparin tube, purple K2EDTA tube and red clot activator tube. Made of transparent medical PP material with leak-proof threaded cap, each tube is coated with matched additive evenly on inner wall and EO sterilized without hemolysis. Green cap heparin tube: Separate plasma for biochemistry, blood rheology & trace element test. Purple cap K2EDTA tube: Preserve blood cell morphology for CBC, blood grouping & nucleic acid test. Red cap clot activator tube: Accelerate coagulation to obtain serum for immunology & hormone assay. Single use only