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Why do some BD Vacutainer® lavender top blood collection tubes contain K2EDTA and others contain K3EDTA?

April 26, 2017BD blood collection contain k2edta k3edta Lavender tubes vacutainer®

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Why do some BD Vacutainer® lavender top blood collection tubes contain K2EDTA and others contain K3EDTA?

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BD Vacutainer® Plus Blood Collection Tubes contain K2EDTA, which is spray-dried to the walls of the tube. K2EDTA is recommended by the CLSI (CLSI guideline – Evacuated Tubes and Additives for Blood Specimen Collection-Fifth Edition H1-A5, 2003) and the ICSH (International Council for Standardization in Hematology). BD Vacutainer® glass blood collection tubes contain K3EDTA, the liquid form of EDTA.