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Order of Collection. Order of Draw CLSI 2007. Blood Cultures Sodium Citrate (Blue Top) Serum tubes (with or without clot activator, with or without gel separator- eg. Red, Gold, or Speckled-Top Tubes) Heparin (with or without gel- eg. Green Top)
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Order of DrawCLSI 2007 • Blood Cultures • Sodium Citrate (Blue Top) • Serum tubes (with or without clot activator, with or without gel separator- eg. Red, Gold, or Speckled-Top Tubes) • Heparin (with or without gel- eg. Green Top) • EDTA (Lavender Top, Pink Top or Pearl Top) • Gylcolytic inhibitor (Gray Top) CLSI Procedures for the Collection of Diagnostic Blood Specimens by Venipunture; Approved Standard-Sixth Edition. CLSI documentation H3-A6. Wayne, PA: Clinical and Laboratory Standards Institute; 2007.